APA (7th ed.) Citation

Titler, D. M. (1970). The day the Red Baron died. Ballantine Books.

Chicago Style (17th ed.) Citation

Titler, Dale M. The Day the Red Baron Died. New York: Ballantine Books, 1970.

MLA (9th ed.) Citation

Titler, Dale M. The Day the Red Baron Died. Ballantine Books, 1970.