TY  - BOOK
AU  - Purchase,Helen C.
TI  - Experimental human-computer interaction: a practical guide with visual examples 
SN  - 9780521279543
AV  - QA76.9.H85 P872E 2012
PY  - 2012///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Human-computer interaction
N1  - Includes bibliographical references and index
ER  -