Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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