APA (7th ed.) Citation

Imrie, A. (1973). Pictorial history of the German Army Air Service, 1914-1918. Regnery.

Chicago Style (17th ed.) Citation

Imrie, Alex. Pictorial History of the German Army Air Service, 1914-1918. Chicago: Regnery, 1973.

MLA (9th ed.) Citation

Imrie, Alex. Pictorial History of the German Army Air Service, 1914-1918. Regnery, 1973.

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