Não informado. (2018). Report of the Treasurer of Yale University. Yale University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Report of the Treasurer of Yale University. New Haven, Conn: Yale University, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Report of the Treasurer of Yale University. Yale University, 2018.
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