Cita APA (7a ed.)
Greer, T. H. (1987). A brief history of the Western world (5th.ed.). HBJ.
Cita Chicago Style (17a ed.)
Greer, Thomas H. A Brief History of the Western World. 5th.ed. New York: HBJ, 1987.
Cita MLA (9a ed.)
Greer, Thomas H. A Brief History of the Western World. 5th.ed. HBJ, 1987.
Precaución: Estas citas no son 100% exactas.