Shaffer, L. F., & Shoben, E. J. (1956). The psychology of adjustment: A dynamic and experimental approach to personality and mental hygiene (2nd ed.). Houghton Mifflin.

Shaffer, Laurance Frederic, and Edward Joseph Shoben. The Psychology of Adjustment: A Dynamic and Experimental Approach to Personality and Mental Hygiene. 2nd ed. Boston: Houghton Mifflin, 1956.

Shaffer, Laurance Frederic, and Edward Joseph Shoben. The Psychology of Adjustment: A Dynamic and Experimental Approach to Personality and Mental Hygiene. 2nd ed. Houghton Mifflin, 1956.