TY  - BOOK
AU  - Sommerville, Ian
TI  - Software engineering
SN  - 0-201-17568-1
U1  - 005.1 
PY  - 1989///
CY  - Wokingham
PB  - Addison-Wesley
KW  - Computer software engineering
KW  - Software engineering
KW  - System modelling
N1  - Includes bibliographical references and index
ER  -