APA (7th ed.) Citation

Thetford, O. (1976). Aircraft of the Royal Air Force since 1918 (6th ed.). Putnam.

Chicago Style (17th ed.) Citation

Thetford, Owen. Aircraft of the Royal Air Force Since 1918. 6th ed. London: Putnam, 1976.

MLA (9th ed.) Citation

Thetford, Owen. Aircraft of the Royal Air Force Since 1918. 6th ed. Putnam, 1976.

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