Government agencies sometimes have information available to the public that normally wouldn't be thought of. For example if we look at the Library of Congress, we can find some information on ufos. Of course it doesn't stop at the Library, other government agencies also have more information on the subject but for now we are just looking at the Library of Congress. Here is a sample of the information contained in that library:

Selected materials available in the Science Reading Room pamphlet boxes include the following:

Balch, Robert W., and David Taylor. Salvation in a UFO. Psychology today, v. 10, Oct. 1976: 58, 61-62, 66, 106.

Eberhart, George M. UFO literature for the serious ufologist. RQ, v. 20, winter 1980: 144-148.

Garelik, Glenn. The great Hudson Valley UFO mystery. Discover, v. 5, Nov. 1984: 18- 20, 22-24.

Gordon, James S. The UFO experience. Atlantic monthly, v. 268, Aug. 1991: 82-86, 88-92.

Hynek, J. Allen. The UFO phenomenon: laugh, laugh, study, study. Technology review, v. 83, July 1981: 51-58.

Oberg, James. The failure of the "science" of ufology. New scientist, v. 84, Oct. 1979: 102-105.

Ogles, George W. What does the Air Force really know about flying saucers? The Airman, v. 11, July 1967: 4-9; Aug.: 26-31.

Ridpath, Ian. Debunking astronomical UFOs. Astronomy, v. 16, Dec. 1988: 114-115.

Sheaffer, Robert. Psychic vibrations (column). Skeptical inquirer, v. 15, winter 1991: 135-136.

Swords, Michael D. Science and the extraterrestrial hypothesis in ufology. Journal of UFO studies, v. 1 (new series), 1989: 67-102.

They're b-a-c-k! The enigma of England's recurring rural rings has scientists running in circles. People, v. 34, Aug. 13, 1990: 54-55.

The UFO's in Uncle Sam's closet. U.S. news & world report, v. 107, Oct. 23, 1989: 19.

Weintraub, Pamela. True confessions. Omni, v. 11, Feb. 1989: 18, 127.

Wingfield, George. The crop circles in 1990. FSR/Flying saucer review, v. 35, no. 4, 1990: 12-16.

Here is a list of government publications relating to ufos

Davidson, Leon. Flying saucers: an analysis of the Air Force Project Blue Book special report no. 14, including The C.I.A. and the Saucers. 5th ed. White Plains, N.Y., Blue-Book Publishers, 1976. 194 p.
   TL789.D3 1976

United States. Congress. House. Committee on Armed Services. Unidentified flying objects. Hearing, Eighty-ninth Congress, second session, April 5, 1966. Washington, U.S. Govt. Print. Off., 1966. 5991-6075 p.
   TL789.U54

United States. Congress. House. Committee on Science and Astronautics. Aliens in the skies; the scientific rebuttal to the Condon Committee report. Testimony by six leading scientists before the House Committee on Science and Astronautics, July 29, 1968. Edited and with an introd. and commentary by John G. Fuller. New York, Putnam, 1969. 217 p.
   TL789.U56
   Commonly known as the Fuller report.

----- Symposium on unidentified flying objects. Hearings, Ninetieth Congress, second session, July 29, 1968. Washington, U.S. Govt. Print. Off., 1968. 247 p.

   TL789.U57 and Pamphlet box <SciRR>
   Sold by National Technical Information Service, Springfield, Va. 22161, as PB 179 541.
   Includes bibliographies.

University of Colorado (Boulder campus). Final report of the scientific study of unidentified flying objects, conducted by the University of Colorado. Edward U. Condon, scientific director. Edited by Daniel S. Gillmor. Boulder, Colo., 1968. 3 v. (1465 p.)
   TL789.C658 <SciRR>
   Includes bibliographies.
   "This research was supported by the Air Force Office of Scientific Research, Office of Aerospace Research, USAF, under Contract F44620-67-C-0035."
   Sold by the National Technical Information Service, Springfield, Va. 22161, as AD 680 975, AD 680 976, and AD 680 977.
   All of the records from Project Blue Book have been deposited in the Military Reference Branch, National Archives and Records Service, Washington, D.C. 20408.

Here is a list of Conference proceedings on ufos available at the library:

Apro UFO Symposium, 5th, Pottstown, Pa., 1974. Proceedings of the 5th APRO UFO Symposium, June 15, 1974, Pottstown, Pennsylvania. Sponsored by Aerial Phenomena Research Organization. Tucson, Ariz., Aerial Phenomena Research Organization, 1974. 22 p.
   TL789.A1A67 1974

Congress of Scientific UFOlogists, New York, 1967. New York's first flying saucer convention. Reported by Bessie J. Gibbs and Opal Smith. Winchester, Va., B. J. Gibbs, 1967. 106 p.
   TL789.A1C6 1967

Eastern UFO Symposium, Baltimore, 1971. Proceedings. Edited by Coral E. Lorenzen. Tucson, Ariz., Aerial Phenomena Research Organization, 1971. 40 p.
   TL789.A1E37 1971

Friedman, Stanton T. UFOs--myth & mystery: 1971 Midwest UFO Conference. Sponsored by Midwest UFO Network (MUFON), featuring Stanton T. Friedman. n.p., 1971. 1 v. (unpaged)
   TL789.A1F73
   Includes a bibliography.

International UFO Congress, 1st, Chicago, 1977. Proceedings of the first International UFO Congress. Compiled and edited by Curtis G. Fuller and the editors of Fate magazine, Mary Margaret Fuller, Jerome Clark, and Betty Lou White. Warner books ed. New York, Warner Books, c1980. 440 p.
   TL789.A1I59 1977

International UPIAR Colloquium on Human Sciences and UFO Phenomena, 1st, Salzburg, Austria, 1982. Proceedings: International UPIAR Colloquium on Human Sciences and UFO Phenomena, Salzburg, July 26-29, 1982. Torino, Cooperativa studi e iniziative UPIAR, 1983. 173 p. TL789.A1I595 1982
   Includes two French papers.
   Includes bibliographies.

MUFON UFO Symposium, 6th, Des Moines, Iowa, 1975. MUFON 1975 UFO symposium proceedings, Des Moines, Iowa, July 5/6, 1975. Seguin, Tex., Mutual UFO Network, c1975. 112 p.
   TL789.A1M83 1975
   "Symposium theme: UFOs: searching for a scientific breakthrough."
   Includes bibliographies.

MUFON UFO Symposium, 7th, Ann Arbor, Mich., 1976. 1976 MUFON symposium proceedings, June 12, 1976, Ann Arbor, Michigan. Sponsored by Mutual UFO Network. Edited by N. Joseph Gurney, and Walter H. Andrus, Jr. Seguin, Tex., MUFON, c1976. 84 p.
   TL789.A1M83 1976
   "Symposium theme: New frontiers in UFO research."
   Includes bibliographical references.

MUFON UFO Symposium, 11th, Clear Lake City, Tex., 1980. UFO technology, a detailed examination. 1980 MUFON UFO symposium proceedings, Clear Lake City, Texas, June 6, 7, 8, 1980. Edited by Walter H. Andrus, Jr., and Dennis W. Stacy. Seguin, Tex., Mutual UFO Network, c1980. 178 p.
   TL789.A1M83 1980
   Includes bibliographical references.

MUFON UFO Symposium, 18th, Washington, D.C., 1987. MUFON 1987 UFO symposium proceedings. Hosted by Fund for UFO Research, American University, Washington, D.C., June 26, 27 & 28, 1987. Edited by Walter H. Andrus, Jr., and Richard H. Hall. Seguin, Texas, MUFON, c1987. 222 p.
   TL789.A1M83 1987
   "Symposium theme: International symposium on unidentified aerial phenomenon [sic], 1947-1987."

Thesis, synthesis, antithesis: a joint symposium sponsored by the Los Angeles & Orange County Sections of the American Institute of Aeronautics & Astronautics and the Los Angeles Chapter of the World Futures [sic] Society, Saturday, September 27, 1975 ... Los Angeles, California: [proceedings]. Edited by A. D. Emerson. Los Angeles, The Institute, c1975. 145 p.
   TL789.A1T48
   Includes bibliographical references.

UFO's--a scientific debate. Edited by Carl Sagan and Thornton Page. Ithaca, N.Y., Cornell University Press, 1972. 310 p.
   TL789.A1U23
   Papers presented at a symposium sponsored by the American Association for the Advancement of Science, held in Boston on Dec. 26-27, 1969.
   Includes bibliographies

This information is presented only as an example of where to start for those that are interested in researching ufos or any other subject for that matter.