TY  - BOOK
AU  - Nagpal, D.P.  .
TI  - Fundamentals concepts, systems & applications / 
SN  - 81-219-2388-3
U1  - BV 
PY  - 1999///
CY  - New Delhi : 
PB  - S.Chand & Co. Ltd., , 
KW  - Computer science
ER  -