Cita APA

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

Citación estilo Chicago

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

Cita MLA

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