United States. General Land Office & Berthrong, I. P. (1910). State of Oregon. Dept. of the Interior, General Land Office.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. General Land Office और I. P. Berthrong. State of Oregon. [Washington, D.C.]: Dept. of the Interior, General Land Office, 1910.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited States. General Land Office और I. P. Berthrong. State of Oregon. Dept. of the Interior, General Land Office, 1910.
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