APA引文

Jan Berenstain; Mike Berenstain. (2009). The Berenstain Bears' Class Trip (I Can Read Level 1). HarperCollins.

芝加哥风格引文

Jan Berenstain; Mike Berenstain. The Berenstain Bears' Class Trip (I Can Read Level 1). HarperCollins, 2009.

MLA引文

Jan Berenstain; Mike Berenstain. The Berenstain Bears' Class Trip (I Can Read Level 1). HarperCollins, 2009.

警告：这些引文格式不一定是100％准确.