APA (7th ed.) Citation

Knittel, S. (1990). German motorcycles in World War II: BMW, DKW, NSU, Triumph, Viktoria, Zündapp. Schiffer Pub..

Chicago Style (17th ed.) Citation

Knittel, Stefan. German Motorcycles in World War II: BMW, DKW, NSU, Triumph, Viktoria, Zündapp. West Chester, Pa.: Schiffer Pub., 1990.

MLA (9th ed.) Citation

Knittel, Stefan. German Motorcycles in World War II: BMW, DKW, NSU, Triumph, Viktoria, Zündapp. Schiffer Pub., 1990.