By Dickson Alex   in Journal of Forestry

ISSN:0022-1201|61|2|131-133

Society of American Foresters‎(1963)‎

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By Dickson Alex   in Journal of Forestry

ISSN:0022-1201|63|11|855-857

Society of American Foresters‎(1965)‎

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By Dickson Alex   in Games

ISSN:2073-4336|4|3|283-303

MDPI‎(2013)‎

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