Onstine, B. W. (1973). Oregon votes: 1858-1972, election returns: By county, from statehood to 1972 for U.S. President, Governor, U.S. Senator, and U.S. Representative. Oregon Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOnstine, Burton W. Oregon Votes: 1858-1972, Election Returns: By County, from Statehood to 1972 for U.S. President, Governor, U.S. Senator, and U.S. Representative. Portland]: Oregon Historical Society, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOnstine, Burton W. Oregon Votes: 1858-1972, Election Returns: By County, from Statehood to 1972 for U.S. President, Governor, U.S. Senator, and U.S. Representative. Oregon Historical Society, 1973.
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