TY  - BOOK
AU  - Nagpal, D. P.
TI  - Data communication and networking
SN  - 8121937027
AV  - TK5105 .N33 2011
PY  - 2011///
CY  - New Delhi
PB  - S.Chand
KW  - Data transmission systems
KW  - Computer networks
ER  -