By Carmean William H.   Thrower James S.   in Northern Journal of Applied Forestry

ISSN:0742-6348|12|1|23-29

Society of American Foresters‎(1995)‎

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By Thrower James S.   Goudie James W.   in Western Journal of Applied Forestry

ISSN:0885-6095|7|1|20-25

Society of American Foresters‎(1992)‎

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By Carmean Willard H.   Hazenberg Gerrit   Thrower James S.   LaValley Richard R.   in Northern Journal of Applied Forestry

ISSN:0742-6348|23|4|257-263

Society of American Foresters‎(2006)‎

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