Dyfyniad APA

McKay, J. P., Buckler, J., & Hill, B. D. (1991). A history of western society (4th ed.). Houghton Mifflin Company Boston.

Dyfyniad Arddull Chicago

McKay, John P., John Buckler, and Bennett D. Hill. A History of Western Society. 4th ed. Dallas Geneva, Illinois: Houghton Mifflin Company Boston, 1991.

Dyfyniad MLA

McKay, John P., et al. A History of Western Society. 4th ed. Houghton Mifflin Company Boston, 1991.

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