Cass, L., Des Lauriers, A. M., Hammer, M. 1., Jessner, L., Kaplan, A. H., & Kaplan, A. M. 1. (1967). The practice of psychotherapy with children. Homewood, Illinois: The Dorsey Press.

Cass, Loretta, Austin M. Des Lauriers, Max 1930- Hammer, Lucie Jessner, Alex H. Kaplan, and Arthur Mark 1927- Kaplan. The Practice of Psychotherapy With Children. Homewood, Illinois: The Dorsey Press, 1967.

Cass, Loretta, et al. The Practice of Psychotherapy With Children. Homewood, Illinois: The Dorsey Press, 1967.