By Silen Roy R.   in Journal of Forestry

ISSN:0022-1201|56|6|410-413

Society of American Foresters‎(1958)‎

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By Silen Roy R.   in Journal of Forestry

ISSN:0022-1201|61|4|281-283

Society of American Foresters‎(1963)‎

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By Silen Roy R.   in Forest Science

ISSN:0015-749X|19|4|288-290

Society of American Foresters‎(1973)‎

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By Silen Roy R.   in Forest Science

ISSN:0015-749X|10|2|222-223

Society of American Foresters‎(1964)‎

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By Silen Roy R.   in Journal of Forestry

ISSN:0022-1201|54|5|311-312

Society of American Foresters‎(1956)‎

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By Silen Roy R.   in Journal of Forestry

ISSN:0022-1201|60|11|790-795

Society of American Foresters‎(1962)‎

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By Silen Roy R.   in Journal of Forestry

ISSN:0022-1201|60|7|472-475

Society of American Foresters‎(1962)‎

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By Silen Roy R.   in Journal of Forestry

ISSN:0022-1201|88|3|64-64

Society of American Foresters‎(1990)‎

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By Silen Roy R.   in Journal of Forestry

ISSN:0022-1201|65|12|888-892

Society of American Foresters‎(1967)‎

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By Silen Roy R.   in Journal of Forestry

ISSN:0022-1201|60|6|407-408

Society of American Foresters‎(1962)‎

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