TY  - BOOK
AU  - Choudhury,Roy D.
TI  - Network and systems
SN  - 9788122427677
U1  - 621.3192 
PY  - 2010///
CY  - NewDelhi
PB  - New age international
N1  - "it includes bibliographical references (p.907-946) and index"
ER  -