TY  - BOOK
AU  - Sleeman, D., ed.
AU  - Brown, J. S., ed.
TI  - Intelligent tutoring systems
T2  - Computer and people series
SN  - 0126486808
U1  - 371.39445 
PY  - 1982///
CY  - London
PB  - Academic Press, Inc.
ER  -