APA (7th ed.) Citation

Benfer, R. A., Brent, E. E., & Furbee, L. (1991). Expert systems Sage University papers / Quantitative applications in the social sciences.

Chicago Style (17th ed.) Citation

Benfer, Robert A., Edward E. Brent, and Louanna Furbee. "Expert Systems." Sage University Papers / Quantitative Applications in the Social Sciences 1991.

MLA (8th ed.) Citation

Benfer, Robert A., et al. "Expert Systems." Sage University Papers / Quantitative Applications in the Social Sciences, 1991.