APA (7th ed.) Citation

Warner & Bishop. (2001). German campaigns of World War II. Grange Books.

Chicago Style (17th ed.) Citation

Warner and Bishop. German Campaigns of World War II. London: Grange Books, 2001.

MLA (8th ed.) Citation

Warner and Bishop. German Campaigns of World War II. Grange Books, 2001.

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