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*008120903s1973    fr            000 u eng d
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*1001 $aBergmann, Hellmuth$0(NO-TrBIB)3041580$_49771200
*24510$aGuide to the economic evaluation of irrigation projects$cby Hellmuth Bergmann
*260  $aParis$bOrganisation for Economic Co-operation and Development$c1973
*300  $a133 s.$bdiagr.
*4901 $aProblems of development
*650 0$aIrrigation$xHandbooks, manuals, etc$_49771300
*650 7$aDevelopment$2agrovoc$_186843900
*650 7$aEconomics$2agrovoc$_185581500
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*7102 $aOECD$0(NO-TrBIB)90051681$_10175000
*830 0$aProblems of development$_22905800
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