TY  - GEN
AU  - Winch,Robert G
TI  - Telecommunication transmission systems\2nd ed
SN  - 007070970X
U1  - 621.395.345 
PY  - 2004///
CY  - New Delhi
PB  - Tata McGraw hill
KW  - 621.395.345
KW  - Telecommunication
ER  -