000 00288cam a22001097a 4500
008 180718b1972 xxu||||| |||| 00| 0 eng d
082 _aW7 In8
245 _aTelecommunication: sector working paper
260 _aWashington, D.C.
_bIBRD
_c1972
300 _a23p.
650 _aTelecommunication
999 _c225103
_d225103