Não informado. (1974). Publications in archeology. U.S. National Park Service.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Publications in Archeology. Washington: U.S. National Park Service, 1974.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Publications in Archeology. U.S. National Park Service, 1974.
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