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RISK, GOVERNMENT PROGRAMS, AND THE ENVIRONMENT
Roberts, Michael J., (2004)
SOIL MANAGEMENT AND THE FARM TYPOLOGY: DO SMALL FAMILY FARMS MANAGE SOIL AND NUTRIENT RESOURCES DIFFERENTLY THAN LARGE FAMILY FARMS?
Soule, Meredith J., (2001)
Land Quality and International Agricultural Productivity: A Distance Function Approach
Malcolm, Scott A., (2006)