Dyfyniad APA

Greer, T. H., & Lewis, G. (1992). A brief history of the Western world (6th.ed.). HBJ.

Dyfyniad Arddull Chicago

Greer, Thomas H., and Gavin Lewis. A Brief History of the Western World. 6th.ed. Fort Worth: HBJ, 1992.

Dyfyniad MLA

Greer, Thomas H., and Gavin Lewis. A Brief History of the Western World. 6th.ed. HBJ, 1992.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.