APA-referens (7:e uppl.)

Smith, S., & Kandel, A. (1993). Verification and validation of rule-based expert systems. CRC Press.

Chicago-referens (17:e uppl.)

Smith, Suzanne, och Abraham Kandel. Verification and Validation of Rule-based Expert Systems. Boca Raton, Fla: CRC Press, 1993.

MLA-referens (9:e uppl.)

Smith, Suzanne, och Abraham Kandel. Verification and Validation of Rule-based Expert Systems. CRC Press, 1993.