APA (7th ed.) Citation

Não informado. (1945). American helicopter. American Helicopter Magazine.

Chicago Style (17th ed.) Citation

Não informado. American Helicopter. New York: American Helicopter Magazine, 1945.

MLA (8th ed.) Citation

Não informado. American Helicopter. American Helicopter Magazine, 1945.

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