TY  - BOOK
AU  - Gamma, Erich
AU  - Helm, Richard
AU  - Johnson, Ralph, et al.
TI  - Design patterns elements of reusable object-oriented software
SN  - 9788131700075
PB  - New Delhi
KW  - Computer
KW  - Design patterns  Object-oriented software
KW  - Object-oriented software design
N1  - Reprint year 2009, includes bibliographical references and index
ER  -