APA引文

(2015). Cambridge English FIRST 1: First certificate in english with answers.

Trích dẫn kiểu Chicago

Cambridge English FIRST 1: First Certificate in English With Answers. 2015.

MLA引文

Cambridge English FIRST 1: First Certificate in English With Answers. 2015.

警告：這些引文格式不一定是100％准確.