International telecommunication management
Elbert, Bruce R
International telecommunication management - Boston: Artech House, 1990 - xx, 343p.
0-89006-383-4
Telecommunication
Circuit switched
D 654.9 / N0
International telecommunication management - Boston: Artech House, 1990 - xx, 343p.
0-89006-383-4
Telecommunication
Circuit switched
D 654.9 / N0