Vinson, B. P. (2007). Language disorders across the lifespan (2nd ed.). Thomson/Delmar Learning.
Lua i Stíl Chicago (17ú heag.)Vinson, Betsy Partin. Language Disorders Across the Lifespan. 2nd ed. Clifton Park, N.Y: Thomson/Delmar Learning, 2007.
Lua MLA (9ú heag.)Vinson, Betsy Partin. Language Disorders Across the Lifespan. 2nd ed. Thomson/Delmar Learning, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.