Bellamy, John
Digital Telehpony by John Bellamy - 1st ed. - New York John Wiley & sons 1982 - xviii, 526 p. ill. 18 cm.
0471080896
Telephony
623.85 / BEL/1982
Digital Telehpony by John Bellamy - 1st ed. - New York John Wiley & sons 1982 - xviii, 526 p. ill. 18 cm.
0471080896
Telephony
623.85 / BEL/1982