TY  - BOOK
AU  - Gupta,Prakash C..
TI  - Data communications and computer networks / 
SN  - 9788120328464
U1  - 004.6 
PY  - 2009///
CY  - New Delhi : 
PB  - PHI Learning , 
KW  - ELECTRONIC COMMUNICATION
KW  - COMPUTER NETWORKS
N1  - includes bibliography and index
ER  -