Dyfyniad APA

Friedman, B. D. (1999). Ecological perspectives cookbook: Recipes for social workers. Pacific Grove: Brooks/Cole Publishing.

Dyfyniad Arddull Chicago

Friedman, Bruce D. Ecological Perspectives Cookbook: Recipes for Social Workers. Pacific Grove: Brooks/Cole Publishing, 1999.

Dyfyniad MLA

Friedman, Bruce D. Ecological Perspectives Cookbook: Recipes for Social Workers. Pacific Grove: Brooks/Cole Publishing, 1999.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.