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User's guide to BENCOS-Lotus 1-2-3 : templates for benefit-cost analysis / by Eric W. Crawford and A. Allan Schmid.
- Michigan state university. Dept. of agricultural economics,
- 1990.
- East Lansing, MI :
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A simulation study of constraints on traditional farming systems in Northern Nigeria / by Eric W. Crawford.
- Michigan state university. Department of agricultural economics,
- 1982.
- East Lansing, MI :
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The impact of agricultural technology in sub-Saharan Africa : a synthesis of symposium findings / by James F. Oehmke and Eric W. Crawford.
- Michigan state university. Department of agricultural economics,
- 1993.
- East Lansing, MI :
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User's guide to BENCOS : a SuperCalc template for benefit-cost analysis / by Eric W. Crawford, Ting-Ing Ho and A. Allan Schmid.
- Michigan state university. Dept. of agricultural economics,
- 1984.
- East Lansing, MI :