Cita APA (7a ed.)

Wiig, K. (1990). Expert systems: A manager's guide. International Labour Office.

Cita Chicago Style (17a ed.)

Wiig, Karl. Expert Systems: A Manager's Guide. Geneva: International Labour Office, 1990.

Cita MLA (9a ed.)

Wiig, Karl. Expert Systems: A Manager's Guide. International Labour Office, 1990.