TY  - BOOK
AU  - Gamma E.,
AU  - Helm R.,
TI  - Design Patterns Elements of Reusable Oriented Software
SN  - 9788131700075
U1  - 005.18 
PY  - 2012///
CY  - New Delhi
PB  - Dorling Kindersley (India) Pvt.Ltd. Licensees of Pearson Education
KW  - Object Oriented Modelling Ddesign
ER  -