APA (7th ed.) Citation

Leys, M. D. R. (1950). A history of the English people. Longmans, Green.

Chicago Style (17th ed.) Citation

Leys, M. D. R. A History of the English People. London, New York: Longmans, Green, 1950.

MLA (8th ed.) Citation

Leys, M. D. R. A History of the English People. Longmans, Green, 1950.