Παραπομπή σε μορφή APA (7η εκδ.)

Barker, R. L. (1984). Social work in private practice: Principles, issues, and dilemmas. National Association of Social Workers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Barker, Robert L. Social Work in Private Practice: Principles, Issues, and Dilemmas. Silver Spring, Md: National Association of Social Workers, 1984.

Παραπομπή σε μορφή MLA (9th εκδ.)

Barker, Robert L. Social Work in Private Practice: Principles, Issues, and Dilemmas. National Association of Social Workers, 1984.