Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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