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  - 2017///
CY  - Uttar Pradesh
PB  - Pearson Education Inc
KW  - Computer Science
KW  - Computer science, information & general works
N1  - Includes Index
ER  -