Oregon Historical Society & Schaeffer, C. E. (1959). Indian tribes and languages of the Old Oregon Country (2nd ed.). The Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOregon Historical Society और Claude E. Schaeffer. Indian Tribes and Languages of the Old Oregon Country. 2nd ed. Portland: The Society, 1959.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOregon Historical Society और Claude E. Schaeffer. Indian Tribes and Languages of the Old Oregon Country. 2nd ed. The Society, 1959.
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