Cita APA (7th ed.)
Greer, T. H. (1982). A brief history of the Western world (4th.ed.). HBJ.
Cita Chicago (17th ed.)
Greer, Thomas H. A Brief History of the Western World. 4th.ed. New York: HBJ, 1982.
Cita MLA (9th ed.)
Greer, Thomas H. A Brief History of the Western World. 4th.ed. HBJ, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.