Engler, B. (2014). Personality theories: An introduction (9th ed.). Wadsworth/Cengage Learning.
Chicago Style (17th ed.) CitationEngler, Barbara. Personality Theories: An Introduction. 9th ed. Australia: Wadsworth/Cengage Learning, 2014.
MLA (9th ed.) CitationEngler, Barbara. Personality Theories: An Introduction. 9th ed. Wadsworth/Cengage Learning, 2014.
Warning: These citations may not always be 100% accurate.