TY  - BOOK
AU  - D Roy Choudhary
TI  - Networks and Systems
SN  - 0000062318
U1  - 621.382 
PY  - 2008///
CY  - New Delhi
PB  - New Age
KW  -  Systems
KW  - Networks
KW  - Telegraphy(621.382)
ER  -