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Dyfyniad Arddull ChicagoSchuttz, Duance. Theories of Personality. California: Brook/Cole publications, 1976.
Dyfyniad MLASchuttz, Duance. Theories of Personality. Brook/Cole publications, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.