Farah, M. A., & Karls, A. B. (1999). The human experience: A world history. Columbus, Ohio: Merrill.
Dyfyniad Arddull ChicagoFarah, Mounir A., và Andrea Berens Karls. The Human Experience: A World History. Columbus, Ohio: Merrill, 1999.
Dyfyniad MLAFarah, Mounir A., và Andrea Berens Karls. The Human Experience: A World History. Columbus, Ohio: Merrill, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.