Johnson, L., & Keravnou, E. T. (1988). Expert Systems: Technology and Applications (0070341680.). McGraw-Hill.
Cita Chicago (17th ed.)Johnson, L., i E. T. Keravnou. Expert Systems: Technology and Applications. 0070341680. New York: McGraw-Hill, 1988.
Cita MLA (9th ed.)Johnson, et al. Expert Systems: Technology and Applications. 0070341680. McGraw-Hill, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.