Roberts, R. (1990). Lessons from the past: Issues for social work theory. Tavistock/Routledge.
Cita Chicago (17th ed.)Roberts, Richard. Lessons from the Past: Issues for Social Work Theory. London: Tavistock/Routledge, 1990.
Cita MLA (9th ed.)Roberts, Richard. Lessons from the Past: Issues for Social Work Theory. Tavistock/Routledge, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.