Kagan, J., & Havemann, E. (1972). Psychology: An introduction (2nd ed.). HBJ.
Tohutoru Kātū Chicago (17th ed.)Kagan, Jerome, me Ernest Havemann. Psychology: An Introduction. 2nd ed. New York: HBJ, 1972.
Tohutoro MLA (9th ed.)Kagan, Jerome, me Ernest Havemann. Psychology: An Introduction. 2nd ed. HBJ, 1972.
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