APA (7th ed.) Citation

Palmer, R. R., & Colton, J. G. (1966). A history of the modern world (Third Edition.). Alfred Knopf.

Chicago Style (17th ed.) Citation

Palmer, R. R., and Joel G. Colton. A History of the Modern World. Third Edition. New York: Alfred Knopf, 1966.

MLA (9th ed.) Citation

Palmer, R. R., and Joel G. Colton. A History of the Modern World. Third Edition. Alfred Knopf, 1966.