Oregon Historical Society. Oregon historical quarterly. Oregon Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOregon Historical Society. Oregon Historical Quarterly. Portland: Oregon Historical Society.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOregon Historical Society. Oregon Historical Quarterly. Oregon Historical Society.
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