TY  - BOOK
AU  - Das, S
TI  - Concept and applications 4th edi
SN  - 978-0-07-063546-3
U1  - 005.422 
PY  - 2008///
CY  - New Delhi
PB  - Tata Mcgraw Hill
KW  - Computer EngineeringInformation Technology
ER  -