Royal Society for Mentally Handicapped Children & Adults. (1957). Journal of Mental Deficiency Research. Blackwell Scientific Publications.
Lua i Stíl Chicago (17ú heag.)Royal Society for Mentally Handicapped Children & Adults. Journal of Mental Deficiency Research. Oxford, Inglaterra: Blackwell Scientific Publications, 1957.
Lua MLA (8ú heag.)Royal Society for Mentally Handicapped Children & Adults. Journal of Mental Deficiency Research. Blackwell Scientific Publications, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.