Communication Without Speech. International Society for Augmentative & Alternative Communication / Books.
Lua i Stíl Chicago (17ú heag.)Communication Without Speech. International Society for Augmentative & Alternative Communication / Books.
Lua MLA (9ú heag.)Communication Without Speech. International Society for Augmentative & Alternative Communication / Books.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.