APA (7th ed.) Citation

Sleeman, D. (1988). Intelligent tutoring systems (2. print.). Academic Press.

Chicago Style (17th ed.) Citation

Sleeman, Derek. Intelligent Tutoring Systems. 2. print. London [u.a.]: Academic Press, 1988.

MLA (9th ed.) Citation

Sleeman, Derek. Intelligent Tutoring Systems. 2. print. Academic Press, 1988.