Benson, H. K. (1929). The pulp and paper industry of the Pacific Northwest. University of Washington.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBenson, Henry Kreitzer. The Pulp and Paper Industry of the Pacific Northwest. Seattle: University of Washington, 1929.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBenson, Henry Kreitzer. The Pulp and Paper Industry of the Pacific Northwest. University of Washington, 1929.
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