000 00522 a2200097 4500
020 _a9261039413
920 _a92-61-03941-3
245 0 _aCCITT Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines :
_bVolume 1 - Design, Construction and Operational Principles of Telecommunication, Power and Electrified Railway Facilities /
_c.
710 2 _aInternational Telecommunication Union.
_eWydawca
_4pbl
260 _aGeneva :
_bITU,
_c1989.
300 _aX, 134 s.;
_c30 cm.
999 _c1800
_d1800