(2000). Educational Environments & Types of Disabilities. U.S. Department of Education.
Lua i Stíl Chicago (17ú heag.)Educational Environments & Types of Disabilities. U.S. Department of Education, 2000.
Lua MLA (9ú heag.)Educational Environments & Types of Disabilities. U.S. Department of Education, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.