Wallerstein, Robert S. (February 2002). "The Growth and Transformation of American Ego Psychology". Journal of the American Psychoanalytic Association. 50 (1): 135–168. doi:10.1177/00030651020500011401. PMID12018862. S2CID37488805.
Wallerstein, Robert S. (February 2002). "The Growth and Transformation of American Ego Psychology". Journal of the American Psychoanalytic Association. 50 (1): 135–168. doi:10.1177/00030651020500011401. PMID12018862. S2CID37488805.
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Wallerstein, Robert S. (February 2002). "The Growth and Transformation of American Ego Psychology". Journal of the American Psychoanalytic Association. 50 (1): 135–168. doi:10.1177/00030651020500011401. PMID12018862. S2CID37488805.