TY  - GEN
AU  - Constantine,Larry L.
AU  - Lockwood,Lucy A.D.
TI  - Software for use : a practical guide to the models and methods of usage-centered design 
SN  - 0-201-92478-1
U1  - 005.1 
PY  - 1999///
CY  - Reading, Mass., Harlow
PB  - Addison-Wesley
ER  -