APA (7th ed.) Citation

Killen, J. (2003). The Luftwaffe: A history. Pen & Sword Military Classics.

Chicago Style (17th ed.) Citation

Killen, John. The Luftwaffe: A History. South Yorkshire, England: Pen & Sword Military Classics, 2003.

MLA (9th ed.) Citation

Killen, John. The Luftwaffe: A History. Pen & Sword Military Classics, 2003.