APA (7th ed.) Citation

Kaplan, P., & Currie, J. (1997). Wolfpack: U-boats at war, 1939-1945. Naval Institute Press.

Chicago Style (17th ed.) Citation

Kaplan, Philip, and Jack Currie. Wolfpack: U-boats at War, 1939-1945. Annapolis, Md.: Naval Institute Press, 1997.

MLA (9th ed.) Citation

Kaplan, Philip, and Jack Currie. Wolfpack: U-boats at War, 1939-1945. Naval Institute Press, 1997.