By Sagmuller Carl J.   Sopper William E.   in Journal of Forestry

ISSN:0022-1201|65|11|822-823

Society of American Foresters‎(1967)‎

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By Sopper William E.   Kardos Louis T.   in Journal of Forestry

ISSN:0022-1201|70|10|612-615

Society of American Foresters‎(1972)‎

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By Sopper William E.   Kardos Louis T.   in Journal of Forestry

ISSN:0022-1201|70|9|540-545

Society of American Foresters‎(1972)‎

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By Reigner Irvin C.   Sopper William E.   Johnson Roy R.   in Journal of Forestry

ISSN:0022-1201|66|12|914-918

Society of American Foresters‎(1968)‎

Access to resources Favorite 10.100876

By Corbett Edward S.   Lynch James A.   Sopper William E.   in Journal of Forestry

ISSN:0022-1201|76|8|484-488

Society of American Foresters‎(1978)‎

Access to resources Favorite 10.100876