HALL, E. J. (1972). Practical conversation in english: For beginning students. Regents.
芝加哥风格引文HALL, Eugene J. Practical Conversation in English: For Beginning Students. New York: Regents, 1972.
MLA引文HALL, Eugene J. Practical Conversation in English: For Beginning Students. Regents, 1972.
警告：这些引文格式不一定是100％准确.