Ashman, A. F., & Laura, R. S. (1985). The education and training of the mentally retarded: Recent advances. Croom Helm.
Lua i Stíl Chicago (17ú heag.)Ashman, A. F., agus R. S. Laura. The Education and Training of the Mentally Retarded: Recent Advances. London: Croom Helm, 1985.
Lua MLA (9ú heag.)Ashman, A. F., agus R. S. Laura. The Education and Training of the Mentally Retarded: Recent Advances. Croom Helm, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.