LEADER 00688nam0 22002411i 450 001 990007321910403321 005 20181025141556.0 035 $a000732191 035 $aFED01000732191 035 $a(Aleph)000732191FED01 035 $a000732191 100 $a20021010d1969----km-y0itay50------ba 101 0 $aita 200 1 $aAggregation in economics$ea theoretical and empirical study$fK. L. Gupta 210 $aRotterdam$cRotterdam University Press$d1969 700 1$aGupta,$bL.K.$0415573 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990007321910403321 952 $aXV I 61$b2148$fDTE 959 $aDTE 996 $aAggregation in economics$91534675 997 $aUNINA