Rich, E., & Knight, K. (1991). Artificial intelligence (2nd ed.). Tata McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Rich, Elaine, agus Kevin Knight. Artificial Intelligence. 2nd ed. New York ; New Delhi: Tata McGraw-Hill, 1991.
Lua MLA (8ú heag.)Rich, Elaine, agus Kevin Knight. Artificial Intelligence. 2nd ed. Tata McGraw-Hill, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.