Palmer, R. R., & Colton, J. (1978). A history of the modern world (5th ed.). Knopf.

Palmer, R. R., and Joel Colton. A History of the Modern World. 5th ed. New York: Knopf, 1978.

Palmer, R. R., and Joel Colton. A History of the Modern World. 5th ed. Knopf, 1978.