Dyfyniad APA

National Association of Social Workers & Edwards, R. L. (1995). Encyclopedia of social work (19th ed.). National Association of Social Workers.

Dyfyniad Arddull Chicago

National Association of Social Workers and Richard L. Edwards. Encyclopedia of Social Work. 19th ed. Washington, DC: National Association of Social Workers, 1995.

Dyfyniad MLA

National Association of Social Workers and Richard L. Edwards. Encyclopedia of Social Work. 19th ed. National Association of Social Workers, 1995.

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