TY  - BOOK
AU  - Ian Sommerville
AU  - ,
TI  - Software Engineering 
SN  - 8129708671
U1  - 005.1 SOS 
PY  - 2006///, 2012
CY  - 
PB  - Pearson Education
KW  - Computer Software- Engineering
N1  - ETE
ER  -