Não informado. (2012). Yearbook. Technical Association of the Pulp and Paper Industry.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Yearbook. New York: Technical Association of the Pulp and Paper Industry, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Yearbook. Technical Association of the Pulp and Paper Industry, 2012.
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