(1980). The key to english: Two-word verbs. Collier Macmillan International.
芝加哥风格引文The Key to English: Two-word Verbs. London: Collier Macmillan International, 1980.
MLA引文The Key to English: Two-word Verbs. Collier Macmillan International, 1980.
警告：这些引文格式不一定是100％准确.