TY  - BOOK
AU  - WALRAND, JEAN
TI  - COMMUNICATON NETWORKS. A FIRST COURSE
SN  - 0070530742
U1  - 004.6/WAL 
PY  - 2003///
CY  - NEW DELHI.
PB  - TATA MCGRAW HILL CO LTD., NEW DELHI.
ER  -