By Crutchfield D. M.   Trew I. F.   in Journal of Forestry

ISSN:0022-1201|59|4|264-266

Society of American Foresters‎(1961)‎

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By Wells Carol G.   Crutchfield D. M.   Trew I. F.   in Forest Science

ISSN:0015-749X|22|1|85-90

Society of American Foresters‎(1976)‎

Access to resources Favorite 2.5421712