Barker, R. L. (2003). The social work dictionary (5th ed.). National Association of Social Workers.
Cita Chicago (17th ed.)Barker, Robert L. The Social Work Dictionary. 5th ed. Washington, DC: National Association of Social Workers, 2003.
Cita MLA (9th ed.)Barker, Robert L. The Social Work Dictionary. 5th ed. National Association of Social Workers, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.