TY  - BOOK
AU  - Singh, Anokh
AU  - Chhabra, A. K.
TI  - Principles of communication engineering
SN  - 8121904765
U1  -  621.38 
PY  - 1984///
CY  - New Delhi,India
PB  - S. Chand & Company Ltd.
KW  - Telecommunication
ER  -