TY  - BOOK
AU  - Roddy,Dennis
AU  - Coolen,John
TI  - Electronic communications
SN  - 8120309847
U1  - 621.382 20
PY  - 1995/// [reprinted 2006, 2005, 2004, 2002, 1995]
CY  - Englewood Cliffs, NJ, New Delhi
PB  - Prentice Hall Career and Technology
KW  - Telecommunication
N1  - Includes index
ER  -