By Fenton Richard H.   Pfeiffer Karl E.   in Journal of Forestry

ISSN:0022-1201|63|10|765-768

Society of American Foresters‎(1965)‎

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By DeLong Aubrey C.   Griffin Dan   Mattoon Gleason H.   Pfeiffer Karl E.   Brouse Fred E.   in Journal of Forestry

ISSN:0022-1201|41|5|332-334

Society of American Foresters‎(1943)‎

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