APA (7 वां संस्करण) प्रशस्ति पत्र

Cohn, L. F., & Harris, R. A. (1992). Knowledge based expert systems in transportation. Transportation Research Board, National Research Council.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Cohn, Louis F., और Roswell A. Harris. Knowledge Based Expert Systems in Transportation. Washington, D.C: Transportation Research Board, National Research Council, 1992.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Cohn, Louis F., और Roswell A. Harris. Knowledge Based Expert Systems in Transportation. Transportation Research Board, National Research Council, 1992.