By Colman E. A.   in Journal of Forestry

ISSN:0022-1201|46|10|755-762

Society of American Foresters‎(1948)‎

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By Colman E.   Katzel L.L.   Sorkin J.   Coon P.J.   Engelhardt S.   Rogus E.   Goldberg A.P.   in Experimental Gerontology

ISSN:0531-5565|30|6|571-580

Elsevier‎(1995)‎

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