TY  - BOOK
AU  - Sommerville,Ian
TI  - Software engineering
SN  - 0201175681 :
AV  - QA76.758.S65 1989 
PY  - 1989///, c1989
CY  - Wokingham, England, Reading, Mass.
PB  - Addison-Wesley
KW  - Software engineering
N1  - Includes index
ER  -