Dyfyniad APA

Perry, M., & Bock, G. W. (2016). Western civilization: A brief history (Eleventh edition.). Wadsworth Cengage Learning.

Dyfyniad Arddull Chicago

Perry, Marvin, and George W. Bock. Western Civilization: A Brief History. Eleventh edition. Australia: Wadsworth Cengage Learning, 2016.

Dyfyniad MLA

Perry, Marvin, and George W. Bock. Western Civilization: A Brief History. Eleventh edition. Wadsworth Cengage Learning, 2016.

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