Lua APA (7ú heag.)
JONES, P., & GREGAN, A. (2001). SIGN & SYMBOL COMMUNICATION FOR MENTALLY HANDICAPPED PEOPLE. CROOM HELM.
Lua i Stíl Chicago (17ú heag.)
JONES, P.R, agus A. GREGAN. SIGN & SYMBOL COMMUNICATION FOR MENTALLY HANDICAPPED PEOPLE. Londres: CROOM HELM, 2001.
Lua MLA (9ú heag.)
JONES, P.R, agus A. GREGAN. SIGN & SYMBOL COMMUNICATION FOR MENTALLY HANDICAPPED PEOPLE. CROOM HELM, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.