Abraham, T. P., & Walters, J. (1976). A union list of the papers of members of Congress from the Pacific Northwest. Washington State University Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAbraham, Terry P., और Janalee Walters. A Union List of the Papers of Members of Congress from the Pacific Northwest. Pullman: Washington State University Library, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAbraham, Terry P., और Janalee Walters. A Union List of the Papers of Members of Congress from the Pacific Northwest. Washington State University Library, 1976.
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