TY  - BOOK
AU  - Maddix,Frank
TI  - Human-computer interaction: theory and practice 
T2  - Ellis Horwood series in computers and their applications
SN  - 0134462386
PY  - 1990///
CY  - New York : 
PB  - Ellis Horwood Limited
KW  - Human-computer interaction
N1  - Includes bibliographical references (p. [283]-289) and index
ER  -