Citazione APA

Rafael J Engel & Russell K Schutt. (2013). The practice of research in social work. Sage.

Stile di citazione Chicago

Rafael J Engel e Russell K Schutt. The Practice of Research in Social Work. Los Angeles: Sage, 2013.

Citazione MLA

Rafael J Engel e Russell K Schutt. The Practice of Research in Social Work. Sage, 2013.