TY  - BOOK
AU  - HACKOS 
AU  - Redish, Janice C.
TI  - User and task analysis for interface design 
SN  - 0471178314 
U1  - 004.21 HAC 1998 
PY  - 1998///
CY  - New York
PB  - John Wiley & Sons
KW  - User interfaces (Computer systems)
N1  - Includes bibliographical references and index
ER  -