Sternberg, R. J., & Spear-Swerling, L. (1999). Perspectives on learning disabilities: Biological, cognitive, contextual. Westview Press.
Chicago-viite (17. p.)Sternberg, Robert J., ja Louise Spear-Swerling. Perspectives on Learning Disabilities: Biological, Cognitive, Contextual. Boulder, Colo.: Westview Press, 1999.
MLA-viite (9. p.)Sternberg, Robert J., ja Louise Spear-Swerling. Perspectives on Learning Disabilities: Biological, Cognitive, Contextual. Westview Press, 1999.
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