Harrison, J. B., & Sullivan, R. E. (1984). A short history of Western civilization: Volume 1 to 1776 (6th.ed.). Alfred A.Knopf.

Harrison, John B., and Richard Eugene Sullivan. A Short History of Western Civilization: Volume 1 to 1776. 6th.ed. New ork: Alfred A.Knopf, 1984.

Harrison, John B., and Richard Eugene Sullivan. A Short History of Western Civilization: Volume 1 to 1776. 6th.ed. Alfred A.Knopf, 1984.