Não informado. (2008). Essential Teacher. Teachers of English to Speakers of Other Languages.
Chicago-referens (17:e uppl.)Não informado. Essential Teacher. Alexandria, Va: Teachers of English to Speakers of Other Languages, 2008.
MLA-referens (8:e uppl.)Não informado. Essential Teacher. Teachers of English to Speakers of Other Languages, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.