APA (7th ed.) Citation

Ryan, C. (1982). The longest day: June 6, 1944. V. Gollancz.

Chicago Style (17th ed.) Citation

Ryan, Cornelius. The Longest Day: June 6, 1944. London: V. Gollancz, 1982.

MLA (8th ed.) Citation

Ryan, Cornelius. The Longest Day: June 6, 1944. V. Gollancz, 1982.

Warning: These citations may not always be 100% accurate.