Insects in relation to national defense.
Circular.

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Corporate Author
United States. Bureau of Entomology and Plant Quarantine.
Language(s)
English
Published
Washington, D.C., U.S. Dept. of Agriculture, Bureau of Entomology and Plant Quarantine.
Subjects
Insect pests > Biological control.
Beneficial insects > Biological control.
Physical Description
24 v.
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Item Link Original Source
Full view   no.1-16 1941-43 Cornell University
Full view   NO1-23 1941-1944 The Ohio State University
Full view   no.17-23 1941-44 Cornell University