By May Jack T.   Rahman Shamsur   Worst Raymond H.   in Journal of Forestry

ISSN:0022-1201|71|6|333-335

Society of American Foresters‎(1973)‎

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By Steinbeck Klaus   McAlpine Robert G.   May Jack T.   in Journal of Forestry

ISSN:0022-1201|70|4|210-213

Society of American Foresters‎(1972)‎

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