TY  - BOOK
AU  - Rolston,David W  .
TI  - Principles of artificial intelligence and expert systems developmen / 
U1  - 006.3 
PY  - 1988///
CY  - New York : 
PB  - Mc-Graw Hill , 
KW  - Artificial intellegence
KW  - Export systems
ER  -