APA (7th ed.) Citation

American Helicopter Society. (1980). Annual forum proceedings. American Helicopter Society.

Chicago Style (17th ed.) Citation

American Helicopter Society. Annual Forum Proceedings. Washington, D.C.: American Helicopter Society, 1980.

MLA (9th ed.) Citation

American Helicopter Society. Annual Forum Proceedings. American Helicopter Society, 1980.

Warning: These citations may not always be 100% accurate.