TY  - BOOK
AU  - Gupta,Sanjeeva
TI  - Electronics communications systems: a textbook for electronics engineering students 
U1  - 621.382 21
PY  - 1981///.[Reprinted 1998]
CY  - New Delhi, 
PB  - Khanna Pub.
KW  - Telecommunication
KW  - Data transmission systems
KW  - Computer networks
ER  -