Digital Telephony
Bellamy, John
Digital Telephony - 2nd Ed.; - New York: John Wiley & sons, 1991. - 572p.; 24 cm
471620564
Engineering
621.385 / BEL
Digital Telephony - 2nd Ed.; - New York: John Wiley & sons, 1991. - 572p.; 24 cm
471620564
Engineering
621.385 / BEL