International Conference on Principles of Knowledge Representation and Reasoning Toronto. (1989). Proceedings of the First International Conference on Principles of Knowledge Representation and Reasoning*Principles of knowledge representation and reasoning*KR eighty-nine KR '89: [Toronto, Ontario, Canada, May 15 - 18, 1989]. Morgan Kaufmann.
Chicago-Zitierstil (17. Ausg.)International Conference on Principles of Knowledge Representation and Reasoning Toronto. Proceedings of the First International Conference on Principles of Knowledge Representation and Reasoning*Principles of Knowledge Representation and Reasoning*KR Eighty-nine KR '89: [Toronto, Ontario, Canada, May 15 - 18, 1989]. San Mateo, Calif: Morgan Kaufmann, 1989.
MLA-Zitierstil (9. Ausg.)International Conference on Principles of Knowledge Representation and Reasoning Toronto. Proceedings of the First International Conference on Principles of Knowledge Representation and Reasoning*Principles of Knowledge Representation and Reasoning*KR Eighty-nine KR '89: [Toronto, Ontario, Canada, May 15 - 18, 1989]. Morgan Kaufmann, 1989.