Postman, L. J. (1962). Psychology in the making: Histories of selected research problems. Knopf.
Lua i Stíl Chicago (17ú heag.)Postman, Leo Joseph. Psychology in the Making: Histories of Selected Research Problems. New York: Knopf, 1962.
Lua MLA (9ú heag.)Postman, Leo Joseph. Psychology in the Making: Histories of Selected Research Problems. Knopf, 1962.
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