APA (7th ed.) Citation

NATO Advanced Research Workshop on New Directions for Intelligent Tutoring Systems Sintra, Portugal, & Costa, E. (1992). New directions for intelligent tutoring systems. Springer-Verlag.

Chicago Style (17th ed.) Citation

NATO Advanced Research Workshop on New Directions for Intelligent Tutoring Systems Sintra, Portugal, and Ernesto Costa. New Directions for Intelligent Tutoring Systems. Berlin: Springer-Verlag, 1992.

MLA (8th ed.) Citation

NATO Advanced Research Workshop on New Directions for Intelligent Tutoring Systems Sintra, Portugal, and Ernesto Costa. New Directions for Intelligent Tutoring Systems. Springer-Verlag, 1992.