APA (7th ed.) Citation

Thomson, D., & Warner, G. (1985). England in the twentieth century, 1914-79 (2nd ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Thomson, David, and Geoffrey Warner. England in the Twentieth Century, 1914-79. 2nd ed. Harmondsworth, England: Penguin Books, 1985.

MLA (9th ed.) Citation

Thomson, David, and Geoffrey Warner. England in the Twentieth Century, 1914-79. 2nd ed. Penguin Books, 1985.

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