APA (7th ed.) Citation

Morris, C. L. (1945). Pioneering the helicopter. McGraw-Hill book company, inc..

Chicago Style (17th ed.) Citation

Morris, Charles Lester. Pioneering the Helicopter. New York London: McGraw-Hill book company, inc., 1945.

MLA (9th ed.) Citation

Morris, Charles Lester. Pioneering the Helicopter. McGraw-Hill book company, inc., 1945.