1.
Building Large Knowledge Bases - Douglas B. Lenat - Hardcover
by Lenat, Douglas B.
ISBN: 9780201517521
List Price: $61.95
2.
Knowledge-Based Systems in Artificial Intelligence: 2 Case Studies - Randall Davis - Hardcover
by Davis, Randall, Lenat, Doug...
ISBN: 9780070155572
List Price: $52.76