Não informado. (1994). Journal of Educational and Behavioral Statistics. American Educational Research Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Educational and Behavioral Statistics. Washington: American Educational Research Association, 1994.
Lua MLA (8ú heag.)Não informado. Journal of Educational and Behavioral Statistics. American Educational Research Association, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.