Gable, Robert A.
Toll-free services : a complete guide to design, implementation, and management / Robert A. Gable. - Boston ; London : Artech House, c1995. - XIII, 186 stron : ilustracje ; 24 cm.
Bibliografia na stronach 175-178. Indeks.
0890067872 (acid-free paper)
Toll-free telephone calls--United States.
Toll-free services : a complete guide to design, implementation, and management / Robert A. Gable. - Boston ; London : Artech House, c1995. - XIII, 186 stron : ilustracje ; 24 cm.
Bibliografia na stronach 175-178. Indeks.
0890067872 (acid-free paper)
Toll-free telephone calls--United States.