TY  - BOOK
AU  - Lee Berry
AU  - National Computing Centre
ED  - National Computing Centre
TI  - Introcucing systems analysis and design
U1  - D6,9(B), L9.1-L9.2 
PY  - 1929///
CY  -  New Delhi 
PB  - Bookmen Association        
KW  - Computer Science
ER  -