Παραπομπή σε μορφή APA (7η εκδ.)

Wagner, G. (1998). Foundations of knowledge systems: With applications to databases and agents. Kluwer Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wagner, G.. Foundations of Knowledge Systems: With Applications to Databases and Agents. Boston: Kluwer Academic Publishers, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wagner, G.. Foundations of Knowledge Systems: With Applications to Databases and Agents. Kluwer Academic Publishers, 1998.