By Johnston H. R.   in Journal of Forestry

ISSN:0022-1201|42|2|130-132

Society of American Foresters‎(1944)‎

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By JOHNSTON H. R.   in Journal of Economic Entomology

ISSN:1938-291X|36|3|386-392

Entomological Society of America‎(1943)‎

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By Johnston H. R.   Eaton C. B.   in Journal of Forestry

ISSN:0022-1201|40|9|712-721

Society of American Foresters‎(1942)‎

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