Trafzer, C. E. (1992). Yakima, Palouse, Cayuse, Umatilla, Walla Walla, and Wanapum Indians: An historical bibliography. Scarecrow Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTrafzer, Clifford E. Yakima, Palouse, Cayuse, Umatilla, Walla Walla, and Wanapum Indians: An Historical Bibliography. Metuchen, N.J.: Scarecrow Press, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTrafzer, Clifford E. Yakima, Palouse, Cayuse, Umatilla, Walla Walla, and Wanapum Indians: An Historical Bibliography. Scarecrow Press, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.