APA (7th ed.) Citation

Wiig, K. M. (1990). Expert systems: A manager's guide (1. publ.). Internat. Labour Office.

Chicago Style (17th ed.) Citation

Wiig, Karl M. Expert Systems: A Manager's Guide. 1. publ. Geneva: Internat. Labour Office, 1990.

MLA (9th ed.) Citation

Wiig, Karl M. Expert Systems: A Manager's Guide. 1. publ. Internat. Labour Office, 1990.