Cost-effective telecommunications
Kuehn, Richard A.
Cost-effective telecommunications - New York: Amacom, ©1975 - vi, 152p.
9780814453544
Telecommunication
Cost effectiveness
384 / KUE
Cost-effective telecommunications - New York: Amacom, ©1975 - vi, 152p.
9780814453544
Telecommunication
Cost effectiveness
384 / KUE