Não informado. (1952). Forestry Research Notes. University of Wisconsin, College of Agricultural and Life Sciences, Extension Forestry Office.
Čikaški stil citiranja (17. izdanje)Não informado. Forestry Research Notes. Madison, Wis: University of Wisconsin, College of Agricultural and Life Sciences, Extension Forestry Office, 1952.
MLA način citiranja (8. izdanje)Não informado. Forestry Research Notes. University of Wisconsin, College of Agricultural and Life Sciences, Extension Forestry Office, 1952.
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