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

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

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