Johnsen, A., Sundet, R., Torsteinsson, V. W., Stern, D., & Enderud, S. (2004). Self in relationships: Perspectives on family therapy from developmental psychology. London ; New York: Karnac.

Johnsen, Astri., Rold Sundet, Vigdis Wie Torsteinsson, Daniel Stern, and Susi Enderud. Self in Relationships: Perspectives On Family Therapy From Developmental Psychology. London ; New York: Karnac, 2004.

Johnsen, Astri., et al. Self in Relationships: Perspectives On Family Therapy From Developmental Psychology. London ; New York: Karnac, 2004.