By Dixon Robert K.   in International Journal of Environment and Pollution

ISSN:0957-4352|8|1-2|1-18

Inderscience Publishers‎(1997)‎

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By Winjum Jack K.   Meganck Richard A.   Dixon Robert K.   in Journal of Forestry

ISSN:0022-1201|91|4|38-42

Society of American Foresters‎(1993)‎

Access to resources Favorite 7.9919147