Cita APA (7a ed.)
Harrison, J. B., & Sullivan, R. E. (1990). A short history of Western civilization (7th.ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Harrison, John B., y Richard Eugene Sullivan. A Short History of Western Civilization. 7th.ed. New York: McGraw-Hill, 1990.
Cita MLA (9a ed.)
Harrison, John B., y Richard Eugene Sullivan. A Short History of Western Civilization. 7th.ed. McGraw-Hill, 1990.
Precaución: Estas citas no son 100% exactas.