Não informado. (2011). Professional Psychology, Research and Practice. American Psychological Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Professional Psychology, Research and Practice. Arlington, Va: American Psychological Association, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Professional Psychology, Research and Practice. American Psychological Association, 2011.
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