Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Palmer, Robert Roswell, y Joel Colton. A History of the Modern World. 5. ed. New York: Knopf, 1978.

Cita MLA (9a ed.)

Palmer, Robert Roswell, y Joel Colton. A History of the Modern World. 5. ed. Knopf, 1978.