Liebowitz, J. (1990). Expert Systems for Business & Management. Yourdon Press.
Cita Chicago (17th ed.)Liebowitz, Jay. Expert Systems for Business & Management. Englewood Cliffs, N.J.: Yourdon Press, 1990.
Cita MLA (9th ed.)Liebowitz, Jay. Expert Systems for Business & Management. Yourdon Press, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.