APA (7th ed.) Citation

Walton, F. E. (1986). Once they were eagles: The men of the Black Sheep Squadron. University Press of Kentucky.

Chicago Style (17th ed.) Citation

Walton, Frank E. Once They Were Eagles: The Men of the Black Sheep Squadron. Lexington, Ky.: University Press of Kentucky, 1986.

MLA (9th ed.) Citation

Walton, Frank E. Once They Were Eagles: The Men of the Black Sheep Squadron. University Press of Kentucky, 1986.