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Publisher
- Agricultural Economics Bureau60
- Forest Service41
- Plant Industry Bureau33
- Biological Survey Bureau25
- Chemistry and Soils Bureau19
- Experiment Stations Office17
- Agricultural Engineering Bureau16
- Dairy Industry Bureau15
- Entomology and Plant Quarantine Bureau14
- Home Economics Bureau14
- Animal Industry Bureau13
- Soil Conservation Service11
- Information Office9
- Entomology Bureau8
- Public Roads Bureau8
- Cooperative Extension Work Office6
- Agriculture Department4
- Weather Bureau4
- Cooperative Extension Division3
- Extension Service3