TY  - BOOK
AU  - Sommerville,Ian
AU  - Sawyer,Pete
TI  - Requirements engineering: a good practice guide 
SN  - 0471974447 
AV  - QA76.76.D47 SOM
PY  - 1997///
CY  - Chichester
PB  - John Wiley and Sons
KW  - Computer software
KW  - Development
KW  - System analysis
KW  - Systems engineering
N1  - Includes bibliographical references and index
ER  -