TY  - BOOK
AU  - GUPTA P.C.
TI  - DATA COMMUNICATIONS AND COMPUTER NETWORKS
SN  - 978 - 81 - 203 - 2846 - 4
U1  - 004.6 
PB  - PHI LEARNONG PVT . LTD . NEW DELHI .
KW  - DATA COMMUNICATION and NETWORKING (T.E.)
N1  - 71/4
ER  -