Ray, V. F. (1933). The Sanpoil and Nespelem: Salishan peoples of northeastern Washington. University of Washington press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRay, Verne F. The Sanpoil and Nespelem: Salishan Peoples of Northeastern Washington. Seattle: University of Washington press, 1933.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRay, Verne F. The Sanpoil and Nespelem: Salishan Peoples of Northeastern Washington. University of Washington press, 1933.
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