APA引文

Doff, a. (2005). Listening student book 2. Kanisius.

芝加哥风格引文

Doff, andrian. Listening Student Book 2. Kanisius, 2005.

MLA引文

Doff, andrian. Listening Student Book 2. Kanisius, 2005.

警告：这些引文格式不一定是100％准确.