Greer, T. H. (1972). A brief history of Western man (2nd.ed.). Harcourt.
Dyfyniad Arddull ChicagoGreer, Thomas H. A Brief History of Western Man. 2nd.ed. New York: Harcourt, 1972.
Dyfyniad MLAGreer, Thomas H. A Brief History of Western Man. 2nd.ed. Harcourt, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.