TY  - BOOK
AU  - Gupta, Prakash C.
TI  - Data communications and computer networks
SN  - 9788120328464
U1  - 004.6 GUP 
PY  - 2011///
CY  -  New Delhi
PB  - PHI Learning Private Limited, 
KW  - Telecommunication
N1  - Includes index
ER  -