APA (7th ed.) Citation

Tuthill, G. S., & Levy, S. T. (1991). Knowledge-based systems: A manager's perspective. TAB Professional and Reference Books.

Chicago Style (17th ed.) Citation

Tuthill, G. Steven, and Susan T. Levy. Knowledge-based Systems: A Manager's Perspective. Blue Ridge Summit: TAB Professional and Reference Books, 1991.

MLA (9th ed.) Citation

Tuthill, G. Steven, and Susan T. Levy. Knowledge-based Systems: A Manager's Perspective. TAB Professional and Reference Books, 1991.