TY  - BOOK
AU  - Whitten, Jeffrey L; Bentiley, Lonnie D.
TI  - Systems analysis and design methods
SN  - 74639625
U1  - 004.21 WHIJ 
PY  - 1999///
CY  - New Delhi
PB  - Tata McGraw Hill Publishing Company Ltd
KW  - System Analysis & Design
ER  -