Não informado. (1970). Human inquiries. Association of Existentical Psychology and Psychiatry.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Human Inquiries. Washington: Association of Existentical Psychology and Psychiatry, 1970.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Human Inquiries. Association of Existentical Psychology and Psychiatry, 1970.
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