Huffman, K., Vernoy, M. W., & Vernoy, J. (1995). Essentials of psychology in action. Wiley.
Lua i Stíl Chicago (17ú heag.)Huffman, Karen, Mark W. Vernoy, agus Judith Vernoy. Essentials of Psychology in Action. New York: Wiley, 1995.
Lua MLA (8ú heag.)Huffman, Karen, et al. Essentials of Psychology in Action. Wiley, 1995.
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