TY  - BOOK
AU  - Benyon, D.
AU  - P. Turner
AU  - S. Turner
TI  - Designing interactive systems: people, activities, context, technologies 
SN  - 0321116291
AV  - QA76.9.I58.B4 2005 
PY  - 2005///
CY  - England
PB  - Addison wesley 
KW  - Interactive computer systems
ER  -