APA (7th ed.) Citation

Graves, A. K. F. The Secrets of the German War Office.

Chicago Style (17th ed.) Citation

Graves, Armgaard Karl; Fox. The Secrets of the German War Office.

MLA (9th ed.) Citation

Graves, Armgaard Karl; Fox. The Secrets of the German War Office.

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