Não informado. (2012). Tappi. Technical Association of the Pulp and Paper Industry.
Lua i Stíl Chicago (17ú heag.)Não informado. Tappi. Atlanta, Ga: Technical Association of the Pulp and Paper Industry, 2012.
Lua MLA (8ú heag.)Não informado. Tappi. Technical Association of the Pulp and Paper Industry, 2012.
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