APA (7th ed.) Citation

Gurdon, J. E., & Neumann, G. P. (1969). The German airforce in the Great War. Cedric Chivers.

Chicago Style (17th ed.) Citation

Gurdon, J. E., and Georg Paul Neumann. The German Airforce in the Great War. Portway, Bath: Cedric Chivers, 1969.

MLA (9th ed.) Citation

Gurdon, J. E., and Georg Paul Neumann. The German Airforce in the Great War. Cedric Chivers, 1969.