Não informado. (2007). Annual report of the Director of the Board of Trustees. Field Museum of Natural History.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report of the Director of the Board of Trustees. Chicago, Ill: Field Museum of Natural History, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report of the Director of the Board of Trustees. Field Museum of Natural History, 2007.
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