APA-referens (7:e uppl.)

Ruffolo, M. C., Perron, B. E., & Voshel, E. H. (2016). Direct social work practice: Theories and skills for becoming an evidence-based practitioner. Sage.

Chicago-referens (17:e uppl.)

Ruffolo, Mary Carmel, Brian E. Perron, och Elizabeth H. Voshel. Direct Social Work Practice: Theories and Skills for Becoming an Evidence-based Practitioner. Los Angeles: Sage, 2016.

MLA-referens (9:e uppl.)

Ruffolo, Mary Carmel, et al. Direct Social Work Practice: Theories and Skills for Becoming an Evidence-based Practitioner. Sage, 2016.