TY  - BOOK
AU  - Erich Gamma ...[et al.]
AU  - Helm, Richard
AU  - Johnson,Ralph
AU  - Vlissides, John
TI  - Design patterns: : elements of reusable object oriented software
SN  - 9780201633610
U1  - 005.12 
PY  - 2007///
CY  - Boston
PB  - Addison-Wesley
KW  - Object-oriented Programming
KW  - Computer software Reusability
ER  -