TY  - BOOK
AU  -  Gamma, Erich
AU  - Helm, Richard
AU  - Johnson, Ralph 
AU  - Vlissides, John
TI  - Design patterns: elements of reusable object-oriented software 
SN  - 9789332555402
U1  - 005.12/ G193d/ 2016 
PY  - 2016///
CY  - India
PB  - Pearson
KW  - Computer Science and Engineering
N1  - Includes Index
ER  -