APA-referens (7:e uppl.)

Lenat, D. B., & Guha, R. V. (1989). Building large knowledge-based systems: Representation and inference in the Cyc project. Addison-Wesley Pub. Co..

Chicago-referens (17:e uppl.)

Lenat, Douglas B., och R. V. Guha. Building Large Knowledge-based Systems: Representation and Inference in the Cyc Project. Reading, Mass.: Addison-Wesley Pub. Co., 1989.

MLA-referens (8:e uppl.)

Lenat, Douglas B., och R. V. Guha. Building Large Knowledge-based Systems: Representation and Inference in the Cyc Project. Addison-Wesley Pub. Co., 1989.