APA استشهاد

Mel Gray & Stephen A Webb. (2009). Social work: Theories and methods. Sage.

استشهاد بنمط شيكاغو

Mel Gray و Stephen A Webb. Social Work: Theories and Methods. London: Sage, 2009.

MLA استشهاد

Mel Gray و Stephen A Webb. Social Work: Theories and Methods. Sage, 2009.