TY  - BOOK
AU  - Sommerville
TI  - Software engineering
SN  - 9788131724613
U1  - 	005.1 
PY  - 2009///
CY  - New Delhi 
PB  - Dorling kindersely pvt lim
N1  - "it includes the bibliographical references and index  831-864p"
ER  -