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*1001 $aPratten, C. F.$0(NO-TrBIB)90054454$_16944800
*24510$aEconomies of scale in manufacturing industry$cby C. F. Pratten
*260  $aCambridge$c1971
*300  $axii, 352 s.$bill.
*4901 $aOccasional papers / University of Cambridge. Department of Applied Economics$v28
*830 0$aOccasional paper (University of Cambridge. Department of Applied Economics)$x0306-7890$v28$w998540585754702201$_16944900
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