(1978). ELT documents: English as an international language. London: British Council.
Trích dẫn kiểu ChicagoELT Documents: English As an International Language. London: British Council, 1978.
ציטוט MLAELT Documents: English As an International Language. London: British Council, 1978.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.