Não informado. (1986). Perspectives. Association for General and Liberal Studies.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Perspectives. Columbus, Ohio: Association for General and Liberal Studies, 1986.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Perspectives. Association for General and Liberal Studies, 1986.
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