APA引文

(1978). ELT documents: English as an international language. London: British Council.

Trích dẫn kiểu Chicago

ELT Documents: English As an International Language. London: British Council, 1978.

MLA引文

ELT Documents: English As an International Language. London: British Council, 1978.

警告：這些引文格式不一定是100％准確.