TY  - BOOK
AU  - Madaan, Anil.
AU  - Singh, DAvinder.
AU  - Krishna.
TI  - Learn about computers: Part- 7 know about software
SN  - 8173012636
U1  - 004 MAD 
PY  - 1999///
CY  - New Delhi
PB  - Dreamland publications
ER  -