TY  - DATA
AU  - Erich Gamma
TI  - Design Patterns: Elements of Reusable Object-Oriented Software
PY  - 1994///
CY  - New Delhi
PB  - Pearson
KW  -  
UR  - https://ebookcentral.proquest.com/lib/gzsptuc/detail.action?docID=5126003&query=Design+Patterns%3A+Elements+of+Reusable+Object-Oriented+Software
ER  -