TY  - BOOK
AU  - Gamma,Erich----(etal), x
AU  - x
TI  - Design patterns: Elements of reusable of object oriented software
SN  - 8178081350
U1  - 005.3/D37 
PY  - 2004///
CY  - Delhi
PB  - Pearson Education
KW  - Software
KW  - Computers
N1  - Includes
ER  -