Ball, W. (1974). A practical guide to colloquial idiom. Longman group.
芝加哥风格引文Ball, W. A Practical Guide to Colloquial Idiom. London: Longman group, 1974.
MLA引文Ball, W. A Practical Guide to Colloquial Idiom. Longman group, 1974.
警告：这些引文格式不一定是100％准确.