APA (7th ed.) Citation

Mackenzie, C. (1929). The three couriers. Cassell.

Chicago Style (17th ed.) Citation

Mackenzie, Compton. The Three Couriers. London: Cassell, 1929.

MLA (8th ed.) Citation

Mackenzie, Compton. The Three Couriers. Cassell, 1929.

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