Não informado. (2015). Records of Observations. University of California Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Records of Observations. Berkeley, Calif: University of California Press, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Records of Observations. University of California Press, 2015.
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