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005 20001010
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100   $a20000920d1960----km-y0itay50------ba
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200 1 $aDemographie and Economic change in devel oped countries$fNational bureau of econo mic Research
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710 02$aNational Bureau of Economic Research$0103307
801  0$aIT$bUNINA$gRICA$2UNIMARC
901   $aBK
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