TY  - BOOK
AU  - Derry, Sharon J
AU  - Lajoie, Susanne P
TI  - Computers as cognitive tools
SN  - 9780805810813
SN  - 93016902
U1  - 006.3 LAJ 
PY  - 1993///
CY  - Hillsdale, NJ
PB  - L. Erlbaum Associates
KW  - Artificial Intelligence
KW  - Computer-assisted instruction - United States
N1  - Includes bibliographical references and indexes
ER  -