Cone and seed insects of western forest trees / F.P. Keen.

Bibliographic Details
Main Author:	Keen, F. P. (Frederick Paul), 1890-
Language:	English
Published:	Washington, D.C. : U.S. Department of Agriculture, 1958.
Series:	Technical bulletin (United States. Department of Agriculture) ; no. 1169.
Subjects:	Forest insects > West (U.S.) > Identification. Trees > Diseases and pests > West (U.S.) > Identification.
Genre:	Identification.
Physical Description:	vi, 168 pages : illustrations ; 23 cm.
Format:	Government Document Book

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