TY  - GEN
AU  - Summerville, Ian
AU  - Sawyer, Pete
TI  - Requirements engineering: a good practice guide
SN  - 0471974447
PY  - 1977///
CY  - Chichester
PB  - John Wiley & Sons 
KW  - Computer software - Development
KW  - System analysis
KW  - System engineering
ER  -