APA (7th ed.) Citation

Williamson, J. A. (1945). A short history of British expansion: The old colonial empire (3rd ed.). Macmillan.

Chicago Style (17th ed.) Citation

Williamson, James A. A Short History of British Expansion: The Old Colonial Empire. 3rd ed. London: Macmillan, 1945.

MLA (8th ed.) Citation

Williamson, James A. A Short History of British Expansion: The Old Colonial Empire. 3rd ed. Macmillan, 1945.