TY  - GEN
AU  - Gamma, Erich
AU  - Helm, Richard
AU  - Johnson, Ralph
AU  - Vlissides, John
TI  - Design patterns: elements of reusable object-oriented software
SN  - 9789332555402
PY  - 2016///
CY  - India
PB  - Pearson Education Services
KW  - Object-oriented programming (Computer science)
KW  - Computer software--Reusability
KW  - Software patterns
ER  -