APA (7th ed.) Citation

Duncan, N. W. (1972). Early armoured cars. Profile Pub..

Chicago Style (17th ed.) Citation

Duncan, Nigel William. Early Armoured Cars. Windsor [England]: Profile Pub., 1972.

MLA (9th ed.) Citation

Duncan, Nigel William. Early Armoured Cars. Profile Pub., 1972.

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