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Publisher
- Plant Industry Bureau176
- Entomology Bureau56
- Agricultural Economics Bureau55
- Entomology and Plant Quarantine Bureau54
- Chemistry and Soils Bureau42
- Forest Service37
- Dairy Industry Bureau32
- Biological Survey Bureau25
- Animal Industry Bureau22
- Agricultural Engineering Bureau17
- Home Economics Bureau11
- Grain Futures Administration4
- Cooperative Extension Work Office3
- Farm Credit Administration3
- Public Roads Bureau3
- Soil Conservation Service3
- Food and Drug Administration2
- Cooperative Extension Division1
- Experiment Stations Office1