APA (7th ed.) Citation

Duval, B. K., & Main, L. (1994). Expert Systems: What Is an Expert System?

Chicago Style (17th ed.) Citation

Duval, Beverly K., and Linda Main. Expert Systems: What Is an Expert System? 1994.

MLA (9th ed.) Citation

Duval, Beverly K., and Linda Main. Expert Systems: What Is an Expert System? 1994.

Warning: These citations may not always be 100% accurate.