Não informado. (1976). Bulletin of Carnegie Museum of Natural History. Carnegie Museum of Natural History.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of Carnegie Museum of Natural History. Pittsburgh, Pa: Carnegie Museum of Natural History, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of Carnegie Museum of Natural History. Carnegie Museum of Natural History, 1976.
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