By Belt George H.   in Entomological Society of America. Bulletin

ISSN:0013-8754|16|2|129-129

Entomological Society of America‎(1970)‎

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By Belt George H.   O'Laughlin Jay   in Western Journal of Applied Forestry

ISSN:0885-6095|9|2|41-45

Society of American Foresters‎(1994)‎

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By O'Laughlin Jay   Belt George H.   in Journal of Forestry

ISSN:0022-1201|93|2|29-32

Society of American Foresters‎(1995)‎

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