TY  - BOOK
AU  - Erich Gamma
TI  - Design Patterns: Elements of Reusable Object-Oriented Software 
SN  - 9789332555402
U1  - 005.12 
PY  - 2018///
CY  - Noida
PB  - Pearson
KW  - Object-oriented programming (Computer science)
KW  - Computer software
KW  - Reusability
KW  - Software patterns
ER  -