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Publisher
- Federal Horticultural Board1
- Fixed Nitrogen Research Laboratory4
- Forest Service93
- Hawaii Agricultural Experiment Station6
- Home Economics Bureau11
- Plant Industry Bureau900
- Plant Industry, Soils, and Agricultural Engineering Bureau87
- Porto Rico Agricultural Experiment Station4
- Public Roads Bureau2
- Puerto Rico Agricultural Experiment Station2
- Punt Industry, Soils, and Agricultural Engineering Bureau2
- Soil Conservation Service5
- Soils Bureau7