TY  - BOOK
AU  - Gupta, Prakash C  .
TI  - Data communications and computer networks / 
SN  - 978-81-203-2846-4
U1  - BV 
PY  - 2006///
CY  - New Delhi : 
PB  - Prentice-Hall of India Private Limited , 
KW  - Computer networks
ER  -