Brummett, P. J. (2003). Civilization past & present (10th ed.). Longman.
Cita Chicago Style (17a ed.)Brummett, Palmira Johnson. Civilization Past & Present. 10th ed. New York: Longman, 2003.
Cita MLA (9a ed.)Brummett, Palmira Johnson. Civilization Past & Present. 10th ed. Longman, 2003.
Precaución: Estas citas no son 100% exactas.