TY  - BOOK
AU  - LENAT, D.B,DAVIS, RANDALL
TI  - KNOWLEDGE BASED SYSTEMS IN ARTIFICIAL INTELLIGENCE
SN  - 0-07-015557-7
U1  - 006.3 DAV'K 
PY  - 1982///
CY  - NEWYORK
PB  - MCGRAW HILL
ER  -