Association for Educational and Training Technology. (1989). International yearbook of educational and training technology. Kogan Page.
Lua i Stíl Chicago (17ú heag.)Association for Educational and Training Technology. International Yearbook of Educational and Training Technology. London: Kogan Page, 1989.
Lua MLA (9ú heag.)Association for Educational and Training Technology. International Yearbook of Educational and Training Technology. Kogan Page, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.