Summer fallow in the Western United States /
- Washington : U.S. Government Printing Office , 1974
- iv, 160p. ; 25 cm.
- USDA conservation research report .
Includes bibliographical references and index.
Land conservation
Fallowing
United States
333.72 / USDA
Includes bibliographical references and index.
Land conservation
Fallowing
United States
333.72 / USDA