APA (7th ed.) Citation

Steels, L., & McDermott, J. (1994). The Knowledge level in expert systems: Conversations and commentary. Academic Press.

Chicago Style (17th ed.) Citation

Steels, Luc, and John McDermott. The Knowledge Level in Expert Systems: Conversations and Commentary. Boston: Academic Press, 1994.

MLA (9th ed.) Citation

Steels, Luc, and John McDermott. The Knowledge Level in Expert Systems: Conversations and Commentary. Academic Press, 1994.