TY  - BOOK
AU  - SCHACH, Stephen .R
TI  - Classical aand object - Oriented Software Engineering
SN  - 0-07-116760-9
U1  - 005.1 
PY  - 1999///
CY  - New Delhi
PB  - WCB McGraw - Hill.
KW  - software life-cycle models
ER  -