APA (7th ed.) Citation

Gardner, B. (2014). German propeller makers of WWI. [Doncaster].

Chicago Style (17th ed.) Citation

Gardner, Bob. German Propeller Makers of WWI. Circadian (UK) Ltd: [Doncaster], 2014.

MLA (9th ed.) Citation

Gardner, Bob. German Propeller Makers of WWI. [Doncaster], 2014.

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