By Thirgood J. V.   in Forest Science

ISSN:0015-749X|27|1|190-190

Society of American Foresters‎(1981)‎

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By Thirgood J. V.   in Forest Science

ISSN:0015-749X|28|4|825-826

Society of American Foresters‎(1982)‎

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By Thirgood J. V.   in Journal of Forestry

ISSN:0022-1201|59|4|247-251

Society of American Foresters‎(1961)‎

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By Thirgood J. V.   in Journal of Forestry

ISSN:0022-1201|67|2|117-117

Society of American Foresters‎(1969)‎

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