TY  - BOOK
AU  - Whitten,Jeffrey L
AU  - Bentley,Lonnie D
TI  - Systems Analysis and Designs Methods / 
U1  - 004.21 
PY  - 2011///
CY  - New Delhi
PB  - Tata McGraw Hill Education Pvt. Ltd.
KW  - Computer Science
N1  - Includes index
ER  -