Insect enemies of western forests
Keen, F.P.
Insect enemies of western forests by F.P. Keen - Washington, D.C. : United States Government Printing Office , 1952 - 254 p. figures - United States department of agriculture, miscellaneous publications .
Index: p. 255-78.
Entomology Forest insects Forest pests Forestry
634.967 / KEE/I
Insect enemies of western forests by F.P. Keen - Washington, D.C. : United States Government Printing Office , 1952 - 254 p. figures - United States department of agriculture, miscellaneous publications .
Index: p. 255-78.
Entomology Forest insects Forest pests Forestry
634.967 / KEE/I
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