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Dyfyniad Arddull ChicagoWitt, Mary Ann Frese., và ... [et al.]. The Humanities: Cultural Roots and Continuities. 5th ed. Boston: Houghton Mifflin, 1997.
Dyfyniad MLAWitt, Mary Ann Frese., và ... [et al.]. The Humanities: Cultural Roots and Continuities. 5th ed. Boston: Houghton Mifflin, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.