Merkoša sitáhtat
APA-čujuhus (7. p.)
Marx, M. H., & Hillix, W. A. (1979). Systems and theories in psychology (3rd ed.). Mc-Graw-Hill.
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Chicago-čujuhus (17. p.)
Marx, Melvin H., juo William A. Hillix. Systems and Theories in Psychology. 3rd ed. New York: Mc-Graw-Hill, 1979.
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MLA-čujuhus (9. p.)
Marx, Melvin H., juo William A. Hillix. Systems and Theories in Psychology. 3rd ed. Mc-Graw-Hill, 1979.
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