Dyfyniad APA

McKay, J. P., & Hill, B. D. (1987). A history of world societies (3rd ed.). Houghton Mifflin.

Dyfyniad Arddull Chicago

McKay, John P., and Bennett D. Hill. A History of World Societies. 3rd ed. Dallas: Houghton Mifflin, 1987.

Dyfyniad MLA

McKay, John P., and Bennett D. Hill. A History of World Societies. 3rd ed. Houghton Mifflin, 1987.

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