TY  - BOOK
AU  - AGRAWAL, R.
AU  - TIWARI, B. B.
TI  - DATA COMMUNICATIONS & COMPUTER NETWORK
SN  - 815915974
U1  - 005.71/AGR/TIW 
PY  - 2005///
CY  - NEW DELHI.
PB  - VIKAS PUBLISHING HOUSE PVT.LTD., NEW DELHI.
ER  -