LEECH, G. (2007). A COMMUNICATIVE GRAMMAR OF ENGLISH, 3RD ED. Pearson.
芝加哥风格引文LEECH, G. A COMMUNICATIVE GRAMMAR OF ENGLISH, 3RD ED. New Delhi: Pearson, 2007.
MLA引文LEECH, G. A COMMUNICATIVE GRAMMAR OF ENGLISH, 3RD ED. Pearson, 2007.
警告：这些引文格式不一定是100％准确.