APA (7th ed.) Citation

Wilson. (2006). Hitler's Alpine retreat. Pen & Sword Military.

Chicago Style (17th ed.) Citation

Wilson. Hitler's Alpine Retreat. Barnsley, South Yorkshire: Pen & Sword Military, 2006.

MLA (8th ed.) Citation

Wilson. Hitler's Alpine Retreat. Pen & Sword Military, 2006.

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