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100   $a20031107d2004      uf             0
101 0 $aeng
135   $aurcn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 12$aA model for calculating interconnection costs in telecommunications /$fguidebook prepared by Paul Noumba Um ... [and others]
210  1$aWashington, D.C. :$cWorld Bank :$cPPIAF,$dc2004.
215   $ax, 67 pages $cillustrations ;$d28 cm. +$e1 CD-ROM (4 3/4 in.)
300   $aBibliographic Level Mode of Issuance: Monograph
311   $a0-8213-5671-2 
320   $aIncludes bibliographical references.
410  0$aWorld Bank e-Library.
606   $aTelecommunication$xRates$zAfrica, Sub-Saharan$xMathematical models
606   $aTelecommunication$zAfrica, Sub-Saharan$xCosts$xMathematical models
615  0$aTelecommunication$xRates$xMathematical models.
615  0$aTelecommunication$xCosts$xMathematical models.
676   $a384.6/4
701   $aNoumba Um$b Paul$01565685
801  0$bDLC
801  1$bDLC
801  2$bDLC
906   $aBOOK
912   $a9910780500203321
996   $aA model for calculating interconnection costs in telecommunications$93835585
997   $aUNINA