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Dyfyniad Arddull ChicagoJohnson, Louise C. Social Work Practice: A Generalist Approach. 3rd ed. Boston: Allyn and Bacon, 1989.
Dyfyniad MLAJohnson, Louise C. Social Work Practice: A Generalist Approach. 3rd ed. Allyn and Bacon, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.