TY  - BOOK
AU  - Freeman, Eric
AU  -  Robson, Elisabeth
TI  - Head First design patterns
SN  - 978-0-596-00712
AV  - QA76.76.D47H427 
CY  - Sebastopol, CA 
KW  -  Computer program language
KW  -  Java
KW  - Computer software -- Development
KW  - Science
ER  -