Guthrie, J. A., & Iulo, W. (1963). Some economic aspects of the pulp and paper industry: With particular reference to Washington and Oregon.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGuthrie, John A., और William Iulo. Some Economic Aspects of the Pulp and Paper Industry: With Particular Reference to Washington and Oregon. [Seattle?], 1963.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGuthrie, John A., और William Iulo. Some Economic Aspects of the Pulp and Paper Industry: With Particular Reference to Washington and Oregon. 1963.
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