Cita APA (7a ed.)

Mandl, H., & Lesgold, A. M. (1988). Learning issues for intelligent tutoring systems. Springer.

Cita Chicago Style (17a ed.)

Mandl, Heinz, y Alan M. Lesgold. Learning Issues for Intelligent Tutoring Systems. New York: Springer, 1988.

Cita MLA (9a ed.)

Mandl, Heinz, y Alan M. Lesgold. Learning Issues for Intelligent Tutoring Systems. Springer, 1988.