Styl cytowania APA

Engel, R. J. A., & Schutt, R. K. A. (2009). The practice of research in social work (2nd ed.).

Styl cytowania Chicago

Engel, Rafael J; Author, i Russell K; Author Schutt. The Practice of Research in Social Work. 2nd ed. New Delhi, Sage Publications India Pvt Ltd, 2009.

Styl cytowania MLA

Engel, Rafael J; Author, i Russell K; Author Schutt. The Practice of Research in Social Work. 2nd ed. 2009.