Sternberg, R. J., & Spear-Swerling, L. (1999). Perspectives on learning disabilities: Biological, cognitive, contextual. Westview Press.
Lua i Stíl Chicago (17ú heag.)Sternberg, Robert J., agus Louise Spear-Swerling. Perspectives on Learning Disabilities: Biological, Cognitive, Contextual. Boulder, Colo.: Westview Press, 1999.
Lua MLA (9ú heag.)Sternberg, Robert J., agus Louise Spear-Swerling. Perspectives on Learning Disabilities: Biological, Cognitive, Contextual. Westview Press, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.