Dyfyniad APA

(1931). The contribution of sociology to social work. Pub. for the New York school of social work by Columbia university press.

Dyfyniad Arddull Chicago

The Contribution of Sociology to Social Work. New York: Pub. for the New York school of social work by Columbia university press, 1931.

Dyfyniad MLA

The Contribution of Sociology to Social Work. Pub. for the New York school of social work by Columbia university press, 1931.

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