APA (7th ed.) Citation

Rand Corp., S. M., McArthur, D., & Stasz, C. (1990). An Intelligent Tutor for Basic Algebra.

Chicago Style (17th ed.) Citation

Rand Corp., Santa Monica, David McArthur, and Cathleen Stasz. An Intelligent Tutor for Basic Algebra. 1990.

MLA (9th ed.) Citation

Rand Corp., Santa Monica, et al. An Intelligent Tutor for Basic Algebra. 1990.