APA引文

Jack C. Richards. (1994). Changes A (class cassette 1). Cambridge, UK: Cambridge Univ. Press.

Trích dẫn kiểu Chicago

Jack C. Richards. Changes A (class Cassette 1). Cambridge, UK: Cambridge Univ. Press, 1994.

MLA引文

Jack C. Richards. Changes A (class Cassette 1). Cambridge, UK: Cambridge Univ. Press, 1994.

警告：这些引文格式不一定是100％准确.