TY  - BOOK
AU  - GAMMA, ERICH;HELM, RICHARD;JOHNSON, RALPH
TI  - Design patterns: Elements of reusable object oriented software
SN  - 8178081350
U1  - 005.12  GAM 
PY  - 1995///
CY  - New Delhi
PB  - Pearson Education
KW  -  Elements
KW  -  object
KW  -  oriented
KW  -  patterns
KW  -  reusable
KW  -  software
KW  - Design
N1  - Software engineering
ER  -