APA (7th ed.) Citation

Lenat, D. B., & Guha, R. V. (1990). Building large knowledge-based systems: Representation and inference in the cyc project (Printing.). Addison-Wesley Publishing.

Chicago Style (17th ed.) Citation

Lenat, Douglas B., and R. V. Guha. Building Large Knowledge-based Systems: Representation and Inference in the Cyc Project. Printing. Reading: Addison-Wesley Publishing, 1990.

MLA (9th ed.) Citation

Lenat, Douglas B., and R. V. Guha. Building Large Knowledge-based Systems: Representation and Inference in the Cyc Project. Printing. Addison-Wesley Publishing, 1990.