APA (7th ed.) Citation

International Specialists Symposium on Helicopter Acoustics Langley Research Center, Langley Research Center, United States. Army Research Office--Durham, N.C, & American Helicopter Society. (1978). Helicopter acoustics: Proceedings of an International Specialists Symposium sponsored by the American Helicopter Society, Washington, D.C. ; the U.S. Army Research Office, Durham, North Carolina ; and the Langley Research Center, Hampton, Virginia, and held at Langley Research Center, May 22-24, 1978. National Aeronautics and Space Administration, Scientific and Technical Information Office ; For sale by the National Technical Information Service.

Chicago Style (17th ed.) Citation

International Specialists Symposium on Helicopter Acoustics Langley Research Center, Langley Research Center, N.C United States. Army Research Office--Durham, and American Helicopter Society. Helicopter Acoustics: Proceedings of an International Specialists Symposium Sponsored by the American Helicopter Society, Washington, D.C. ; the U.S. Army Research Office, Durham, North Carolina ; and the Langley Research Center, Hampton, Virginia, and Held at Langley Research Center, May 22-24, 1978. [Washington] : Springfield, Va.: National Aeronautics and Space Administration, Scientific and Technical Information Office ; For sale by the National Technical Information Service, 1978.

MLA (9th ed.) Citation

International Specialists Symposium on Helicopter Acoustics Langley Research Center, et al. Helicopter Acoustics: Proceedings of an International Specialists Symposium Sponsored by the American Helicopter Society, Washington, D.C. ; the U.S. Army Research Office, Durham, North Carolina ; and the Langley Research Center, Hampton, Virginia, and Held at Langley Research Center, May 22-24, 1978. National Aeronautics and Space Administration, Scientific and Technical Information Office ; For sale by the National Technical Information Service, 1978.