TY  - BOOK
AU  - Gamma, Erich.
AU  - Helm, Richard.
AU  - Johnson, Ralph.
TI  - Design patterns: elements of reusable object-oriented software /Erich Gamma(...)
T2  - Addison Wesley Professional Computing Series
SN  - 0201633612
U1  - 005.1 
PY  - 1994///
CY  - Reading
PB  - A-W
ER  -