By Ashton Mark S.   Peters Charles M.   in Journal of Forestry

ISSN:0022-1201|97|11|14-19

Society of American Foresters‎(1999)‎

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By Covey Kristofer R.   Barrett Alex L.   Ashton Mark S.   in Canadian Journal of Forest Research

ISSN:1208-6037|45|11|1628-1635

NRC Research Press‎(2015)‎

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