Cita APA (7a ed.)

Kagan, D., Ozment, S., & Turner, F. M. (1979). The western heritage: Since 1648. Macmillan Publishing.

Cita Chicago Style (17a ed.)

Kagan, Donald, Steven Ozment, y Frank M. Turner. The Western Heritage: Since 1648. New York: Macmillan Publishing, 1979.

Cita MLA (9a ed.)

Kagan, Donald, et al. The Western Heritage: Since 1648. Macmillan Publishing, 1979.