Não informado. (1950). Canadian pulp and paper industry. Maclean Hunter.
Lua i Stíl Chicago (17ú heag.)Não informado. Canadian Pulp and Paper Industry. Vancouver, Canada: Maclean Hunter, 1950.
Lua MLA (8ú heag.)Não informado. Canadian Pulp and Paper Industry. Maclean Hunter, 1950.
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