Campbell, D., Draper, R., & Huffington, C. (1998). Second thoughts on the theory and practice of the theory and practice of the Milan approach to family therapy. Karnac Books ; Distributed in the U.S.A. by Brunner/Mazel, Inc.].

Campbell, David, Rosalind Draper, и Clare Huffington. Second Thoughts on the Theory and Practice of the Theory and Practice of the Milan Approach to Family Therapy. London : [New York: Karnac Books ; Distributed in the U.S.A. by Brunner/Mazel, Inc.], 1998.

Campbell, David, et al. Second Thoughts on the Theory and Practice of the Theory and Practice of the Milan Approach to Family Therapy. Karnac Books ; Distributed in the U.S.A. by Brunner/Mazel, Inc.], 1998.