Allen, E. (1955). How to write & speak effective english. Fawcett.
芝加哥风格引文Allen, Edwards. How to Write & Speak Effective English. New York: Fawcett, 1955.
MLA引文Allen, Edwards. How to Write & Speak Effective English. Fawcett, 1955.
警告：这些引文格式不一定是100％准确.