TY  - BOOK
AU  - Biswas,Nripendra N., x
AU  - x
TI  - Principles of Telephony: x
SN  - 818527309x
U1  - 621.385/B621p 
PY  - 2001///
CY  - bangalore
PB  - Radiant Books
KW  - Telephony, Wireless
KW  - Engineering
N1  - Includes
ER  -