Não informado. (2004). English in Education. National Association for the Teaching of English.
Chicago-referens (17:e uppl.)Não informado. English in Education. London: National Association for the Teaching of English, 2004.
MLA-referens (8:e uppl.)Não informado. English in Education. National Association for the Teaching of English, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.