By Bruhn Johann N.   Heyd Robert L.   in Northern Journal of Applied Forestry

ISSN:0742-6348|9|2|47-51

Society of American Foresters‎(1992)‎

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By Heyd Robert L.   Murray Ronald L.   Wilson Louis F.   in Northern Journal of Applied Forestry

ISSN:0742-6348|4|1|16-17

Society of American Foresters‎(1987)‎

Access to resources Favorite 9.472284