APA (7th ed.) Citation

Kaplan, P. (2006). Two-man air force: [Don Gentile & John Godfrey, World War Two flying aces] (1. publ.). Pen & Sword Aviation.

Chicago Style (17th ed.) Citation

Kaplan, Philip. Two-man Air Force: [Don Gentile & John Godfrey, World War Two Flying Aces]. 1. publ. Barnsley: Pen & Sword Aviation, 2006.

MLA (9th ed.) Citation

Kaplan, Philip. Two-man Air Force: [Don Gentile & John Godfrey, World War Two Flying Aces]. 1. publ. Pen & Sword Aviation, 2006.

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