1.
Conceptual Structures for Knowledge Creation and Communication 11th International Conference...
by Moor, Aldo de, Lex, Wilfrie...
ISBN: 9783540405764
List Price: $71.00
2.
Conceptual Structures for Knowledge Creation and Communication
by Moor, Aldo de, Lex, Wilfrie...
ISBN: 9783662202197
List Price: $24.99