International Telegraph and Telephone Consultative Committee International Telecommunication Union

title	ISBN-13	year of publication
Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines	978-92-61-03941-7	1989
Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines	978-92-61-04031-4	1989
Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines	978-92-61-04051-2	1989
Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines	978-92-61-04061-1	1989
Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines	978-92-61-04071-0	1989
Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines	978-92-61-04091-8	1989
Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines	978-92-61-04101-4	1989
Directives Concerning the Protection of Telecommunication Lines Against Harmful Effects from Electric Power and Electrified Railway Lines: Physical Theory and Calculation Methods	978-92-61-04041-3	1989