Bellamy, John C.
Digital Telephony - 3rd - Singapore John Wiley 2002 - 643 - Wiley Series in Telecommunications and Signal Processing .
9 814 12635 7
Digital Telephone Systems
621 BEL
Digital Telephony - 3rd - Singapore John Wiley 2002 - 643 - Wiley Series in Telecommunications and Signal Processing .
9 814 12635 7
Digital Telephone Systems
621 BEL