TY  - BOOK
AU  - Abelson, Robert P
AU  - Black, John B
AU  - Galambos, James A
TI  - Knowledge structures
SN  - 9780898598162
SN  - 86016738
U1  - 153.4 GAL 
PY  - 1986///
CY  - Hillsdale, N.J
PB  - L. Erlbaum Associates
KW  - Artificial Intelligence
KW  - Cognition
N1  - Includes indexes. Bibliography: p. 253-266
ER  -