Eraut, M. (1989). The International encyclopedia of educational technology. Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Eraut, Michael. The International Encyclopedia of Educational Technology. Oxford, England ; New York: Pergamon Press, 1989.
Lua MLA (8ú heag.)Eraut, Michael. The International Encyclopedia of Educational Technology. Pergamon Press, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.