APA (7th ed.) Citation

Palmer, R. R., & Colton, J. G. (1965). A history of the modern world (3rd ed.). Knopf.

Chicago Style (17th ed.) Citation

Palmer, R. R., and Joel G. Colton. A History of the Modern World. 3rd ed. New York: Knopf, 1965.

MLA (9th ed.) Citation

Palmer, R. R., and Joel G. Colton. A History of the Modern World. 3rd ed. Knopf, 1965.