Jefford. (2014). Observers and navigators and other non-pilot aircrew in the RFC, RNAS and RAF. Grub Street.
Chicago Style (17th ed.) CitationJefford. Observers and Navigators and Other Non-pilot Aircrew in the RFC, RNAS and RAF. London: Grub Street, 2014.
MLA (8th ed.) CitationJefford. Observers and Navigators and Other Non-pilot Aircrew in the RFC, RNAS and RAF. Grub Street, 2014.
Warning: These citations may not always be 100% accurate.