By Shanklin John F.   in Journal of Forestry

ISSN:0022-1201|49|11|793-794

Society of American Foresters‎(1951)‎

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By Shanklin John F.   in Journal of Forestry

ISSN:0022-1201|67|11|832-832

Society of American Foresters‎(1969)‎

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By Clepper Henry   McGuire John R.   Shanklin John F.   in Journal of Forestry

ISSN:0022-1201|68|6|360-360

Society of American Foresters‎(1970)‎

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