Engler, B. (1995). Personality theories: An introduction (4th ed.). Houghton Mifflin.
Chicago Style (17. basım) AtıfEngler, Barbara. Personality Theories: An Introduction. 4th ed. Boston: Houghton Mifflin, 1995.
MLA (9th ed.) AtıfEngler, Barbara. Personality Theories: An Introduction. 4th ed. Houghton Mifflin, 1995.
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