000 00365 a2200097 4500
020 _a9261050417
920 _a92-61-05041-7
245 0 _aRural Telecommunications :
_bSwitching, ISDN, Financing Aspects and Use of Fibres for Rural Networks /
_c.
_nVol. 2
710 2 _aInternational Telecommunication Union.
_eWydawca
_4pbl
260 _aGeneva :
_bITU,
_c1992.
300 _a161 s.:
_bil.;
_c30 cm.
999 _c773
_d773