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1Doctoral thesis bibliotecaWUR NL
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2Land use planning : an application of multilevel and multicriteria linear programming models : draftBook (monograph) bibliotecaWUR NL
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3The economics of soil conservation in developing countries: the case of crop residue mulching The economics of soil conservation in developing countries: the case of crop residue mulchingby 65198 Erenstein, O.C.A., Wageningen University, Wageningen (Países Bajos) WUR 20997
Published 1999bibliotecaIICA