APA引文

English language services. (1966). The key to English; T1: Prepositions. London: Collier-MacMillan.

Trích dẫn kiểu Chicago

English language services. The Key to English; T1: Prepositions. London: Collier-MacMillan, 1966.

MLA引文

English language services. The Key to English; T1: Prepositions. London: Collier-MacMillan, 1966.

警告：這些引文格式不一定是100％准確.