APA (7th ed.) Citation

Gröner, E., Jung, D., & Maass, M. (1990). German warships, 1815-1945. Naval Institute Press.

Chicago Style (17th ed.) Citation

Gröner, Erich, Dieter Jung, and Martin Maass. German Warships, 1815-1945. Annapolis, Md.: Naval Institute Press, 1990.

MLA (9th ed.) Citation

Gröner, Erich, et al. German Warships, 1815-1945. Naval Institute Press, 1990.