TY  - BOOK
AU  - Gamma, Erich [et...al]
TI  - Design Patterns: Elements of Reusable Object-Oriented Software
T2  - Addison-Wesley Professional Computing Series
SN  - 8178081350
U1  - 005.12 
PY  - 2005///
CY  - Delhi
PB  - Pearson Education
ER  -