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200 1 $aX-Efficiency$etheory, evidence and applications$fRoger S. Frantz
210   $aBoston$cKluwer Academic$d1988
215   $aXX, 227 p., 23 cm
225 1 $aTopics in regulatory economics and policy series$v
676   $a338
700  1$aFrantz,$bRoger S.$0129246
801  0$aIT$bUNINA$gRICA$2UNIMARC
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