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Dyfyniad Arddull ChicagoStrong, Bryan. Human Sexuality: Diversity in Contemporary America. 5th ed. Boston: McGraw-Hill, 2005.
Dyfyniad MLAStrong, Bryan. Human Sexuality: Diversity in Contemporary America. 5th ed. Boston: McGraw-Hill, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.