Cita APA (7a ed.)

Keller, R. (1987). Expert system technology: Development and application. Yourdon.

Cita Chicago Style (17a ed.)

Keller, Robert. Expert System Technology: Development and Application. Englewood Clifs: Yourdon, 1987.

Cita MLA (9a ed.)

Keller, Robert. Expert System Technology: Development and Application. Yourdon, 1987.