Cita APA (7th ed.)

Wells, K., & Biegel, D. E. (1991). Family preservation services: Research and evaluation. Sage Publications.

Cita Chicago (17th ed.)

Wells, Kathleen, i David E. Biegel. Family Preservation Services: Research and Evaluation. Newbury Park, Calif. ; London ; New Delhi: Sage Publications, 1991.

Cita MLA (8th ed.)

Wells, Kathleen, i David E. Biegel. Family Preservation Services: Research and Evaluation. Sage Publications, 1991.