APA (7th ed.) Citation

Ryan, C. (1994). The longest day: June 6, 1944 ; [the classic epic of D-Day] (1. Touchstone ed.). Simon & Schuster.

Chicago Style (17th ed.) Citation

Ryan, Cornelius. The Longest Day: June 6, 1944 ; [the Classic Epic of D-Day]. 1. Touchstone ed. New York ; London: Simon & Schuster, 1994.

MLA (9th ed.) Citation

Ryan, Cornelius. The Longest Day: June 6, 1944 ; [the Classic Epic of D-Day]. 1. Touchstone ed. Simon & Schuster, 1994.