APA (7th ed.) Citation

Horgan, P., & Hurd, P. (1939). The habit of empire. Harper & Brothers.

Chicago Style (17th ed.) Citation

Horgan, Paul, and Peter Hurd. The Habit of Empire. New York, London: Harper & Brothers, 1939.

MLA (9th ed.) Citation

Horgan, Paul, and Peter Hurd. The Habit of Empire. Harper & Brothers, 1939.