Nicandri, D. L. (1986). Northwest chiefs: Gustav Sohon's views of the 1855 Stevens treaty councils. Washington State Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNicandri, David L. Northwest Chiefs: Gustav Sohon's Views of the 1855 Stevens Treaty Councils. Tacoma, Wash.: Washington State Historical Society, 1986.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNicandri, David L. Northwest Chiefs: Gustav Sohon's Views of the 1855 Stevens Treaty Councils. Washington State Historical Society, 1986.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.