APA (7th ed.) Citation

Ryan, C. 0. (1960). The longest day: [June 6, 1944, D-Day]. Fawcett.

Chicago Style (17th ed.) Citation

Ryan, Cornelius 05.06.1920-23.11.1974. The Longest Day: [June 6, 1944, D-Day]. Greenwich, Conn: Fawcett, 1960.

MLA (8th ed.) Citation

Ryan, Cornelius 05.06.1920-23.11.1974. The Longest Day: [June 6, 1944, D-Day]. Fawcett, 1960.