TY  - BOOK
AU  - Sommerville,Ian
TI  - Software engineering
SN  - 0201142295 (Paperback.)
AV  - QA76.758 SOM 
PY  - 1985///
CY  - Wokingham
PB  - Addison-Wesley
KW  - Software engineering
N1  - Includes bibliographical references
ER  -