TY  - GEN
AU  - Whitten, Jeffrey L.
AU  - Bentley, Lonnie D.
TI  - Systems analysis and design methods
SN  - 9780070634176
U1  - 004.21 
PY  - 1986///
CY  - New Delhi 
PB  - Tata McGraw-Hill
KW  - System analysis
KW  - Computer science
KW  - System design
ER  -