APA (7th ed.) Citation

Campbell, G. A. (1943). Our police force. Oxford University Press.

Chicago Style (17th ed.) Citation

Campbell, G. A. Our Police Force. London : New York [etc.]: Oxford University Press, 1943.

MLA (8th ed.) Citation

Campbell, G. A. Our Police Force. Oxford University Press, 1943.

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