TY  - BOOK
AU  - Gamma, Erich and others
TI  - Design patterns
SN  - 0201455633
U1  - 005.117 
PY  - 1998///
CY  - England
PB  - ; Addison-Wesley
KW  - Design Patterns
KW  - Object Oriented Programming
KW  - Programming Languages
ER  -