Não informado. (1980). British Journal of Language Teaching. British Association for Language Teaching.
Chicago-referens (17:e uppl.)Não informado. British Journal of Language Teaching. Oxford, Inglaterra: British Association for Language Teaching, 1980.
MLA-referens (8:e uppl.)Não informado. British Journal of Language Teaching. British Association for Language Teaching, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.