DEIGHTON, L. C. [. (1971). The encyclopedia of education vol.9. The Macmillan.
Lua i Stíl Chicago (17ú heag.)DEIGHTON, Lee C. [Ed.]. The Encyclopedia of Education Vol.9. New York: The Macmillan, 1971.
Lua MLA (9ú heag.)DEIGHTON, Lee C. [Ed.]. The Encyclopedia of Education Vol.9. The Macmillan, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.