APA استشهاد

Thomson, D., & Warner, G. (1981). England in the twentieth century, 1914-79 (2nd ed.). Penguin Books.

استشهاد بنمط شيكاغو

Thomson, David, و Geoffrey Warner. England in the Twentieth Century, 1914-79. 2nd ed. Harmondsworth, Middlesex, England: Penguin Books, 1981.

MLA استشهاد

Thomson, David, و Geoffrey Warner. England in the Twentieth Century, 1914-79. 2nd ed. Penguin Books, 1981.