APA (7th ed.) Citation

Butterworth, W. E. (1971). Flying army: The modern air arm of the U.S. Army. Doubleday.

Chicago Style (17th ed.) Citation

Butterworth, W. E. Flying Army: The Modern Air Arm of the U.S. Army. Garden City, N.Y.: Doubleday, 1971.

MLA (9th ed.) Citation

Butterworth, W. E. Flying Army: The Modern Air Arm of the U.S. Army. Doubleday, 1971.