By Berntsen Carl M.   in Journal of Forestry

ISSN:0022-1201|79|4|203-203

Society of American Foresters‎(1981)‎

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By Cochran P. H.   Berntsen Carl M.   in Forest Science

ISSN:0015-749X|19|4|272-280

Society of American Foresters‎(1973)‎

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By Sand N. H.   Berntsen Carl M.   in Journal of Forestry

ISSN:0022-1201|79|3|136-139

Society of American Foresters‎(1981)‎

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By Burkhart Harold E.   Berntsen Carl M.   in Journal of Forestry

ISSN:0022-1201|80|3|0-169

Society of American Foresters‎(1982)‎

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