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Gypsy moth work fiscal year 1939
- Blaisdell, H. L. and United States Bureau of Entomology and Plant Quarantine.
- Gypsy moth -- Control -- United States
- This folder contains records and information relative to gypsy moth work accomplished during the 1939 fiscal year by the regular scouting and extermination project under the supervision of H.L. Blaisdell.
- 1 online resource (136 pages) : tables, maps
- [United States Department of Agriculture, Bureau of Entomology and Plant Quarantine]
- USDA publications