Kauffman, J. M., & Hallahan, D. P. (2005). Special education: What it is and why we need it. Pearson/Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Kauffman, James M., agus Daniel P. Hallahan. Special Education: What It Is and Why We Need It. Boston: Pearson/Allyn and Bacon, 2005.
Lua MLA (9ú heag.)Kauffman, James M., agus Daniel P. Hallahan. Special Education: What It Is and Why We Need It. Pearson/Allyn and Bacon, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.