TY  - BOOK
AU  - ERICH GAMMA; RICHARD HELM; RALPH JOHNSON ET AL.
TI  - DESIGN PATTERNS: ELEMENTS OF REUSABLE OBJECT-ORIENTED SOFTWARE
SN  - 8178081350
U1  - 005.12 
PB  - EAST-WEST PRESS LIMITED
KW  - COMPUTER SCIENCE
KW  - SOFTWARE DESIGN
ER  -