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- Author:
- United States Office of Experiment Stations.
- Subject:
- Agriculture United States , soil erosion , plant breeding , tillage , harrowing , harrows , mushroom growing , food preservation , food storage , soil , mushrooms
- Physical description:
- 32 p. : ill. ; 23 cm.
- Additional Author(s):
- United States Office of Experiment Stations.
- Collection:
- Organic Roots Collection
- Series:
- Farmers' bulletin