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100   $a20080702d1967----km-y0itay50------ba
101 0 $aeng
102   $aGB
105   $ay-------001yy
200 1 $a<<The >>construction and use of economic models$fA. R. Bergstrom
210   $aLondon$cThe English universities press$d1967
215   $aX, 131 p.$d23 cm
225 2 $aApplied mathematics series
410  0$12001$aApplied mathematics series
700  1$aBergstrom,$bAlbert Rex$0147292
801  0$aIT$bUNIPARTHENOPE$c20080702$gRICA$2UNIMARC
912   $a000013889
951   $a213/34$b179/L/CNR$cNAVA2
996   $aConstruction and use of economic models$9463531
997   $aUNIPARTHENOPE