Weyerhaeuser Company. Pulp Division. (1937). West coast hemlock pulp: A product of American pulp mills.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWeyerhaeuser Company. Pulp Division. West Coast Hemlock Pulp: A Product of American Pulp Mills. [Minneapolis, 1937.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWeyerhaeuser Company. Pulp Division. West Coast Hemlock Pulp: A Product of American Pulp Mills. 1937.
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