Sperling, M.B., & Berman, W.H. (1994). Attachment in adults: Theory, assessment and treatment. New York:Guildford.

Berman, W.H., Marcus, L., & Berman, E.R. (1994). Attachment in marital relations. In M.B. Sperling & W.H. Berman, Attachment in adults: Theory, assessment and treatment. pp. 204-231. New York:Guildford.

Sperling, M.B., & Berman, W.H. (1991). An attachment classification of desperate love. Journal of Personality Assessment, 56, 45-55.