TY  - BOOK
AU  - Gamma Erich,Helm Richard,Johnson Ralph,Vlissides John
TI  - Design Patterns  Elements of Reusable Object-Oriented Software
SN  - 9789332555402
U1  - 005.12 GAM 
PY  - 2016///
CY  - Pearson
PB  - Noida
KW  - COMPUTER SCIENCE
ER  -