Works Cited
- Weiten, Wayne. (2004) Psychology: Themes and Variations. Belmont, CA: Wadsworth.
- Leahey, Thomas H. (1980) A History of Psychology. Englewood Cliffs, NJ: Prentice-Hall, Inc.
- Wertheimer, Michael. (2000) A Brief History of Psychology (4th ed.). Belmont, CA: Wadsworth.
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