By Williamson Richard L.   in Forest Science

ISSN:0015-749X|21|4|365-370

Society of American Foresters‎(1975)‎

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By Knapp Robert H.   williamson Richard L.   in Forest Science

ISSN:0015-749X|30|2|284-290

Society of American Foresters‎(1984)‎

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By Hamman Kurt D.   Williamson Richard L.   Steffler Eric D.   Wright Christopher T.   Hess J. Richard   Pryfogle Peter A.   in Applied Biochemistry and Biotechnology

ISSN:0273-2289|121|1-3|71-80

Humana Press, Inc‎(2005)‎

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