CCITT Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines :   Volume 1 - Design, Construction and Operational Principles of Telecommunication, Power and Electrified Railway Facilities /  

 - Geneva :   ITU,   1989. 
 - X, 134 s.;   30 cm. 
<br/><br/><label>ISBN: </label>9261039413