APA (7th ed.) Citation

O'Shea, T., Self, J., & Thomas, G. (1987). Intelligent knowledge-based systems: An introduction. Harper and Row.

Chicago Style (17th ed.) Citation

O'Shea, Tim, John Self, and Glan Thomas. Intelligent Knowledge-based Systems: An Introduction. London: Harper and Row, 1987.

MLA (9th ed.) Citation

O'Shea, Tim, et al. Intelligent Knowledge-based Systems: An Introduction. Harper and Row, 1987.