APA引文

Jan Berenstain; Stan Berenstain. (2006). The Berenstain Bears Down on the Farm (I Can Read Level 1). HarperCollins.

芝加哥风格引文

Jan Berenstain; Stan Berenstain. The Berenstain Bears Down on the Farm (I Can Read Level 1). HarperCollins, 2006.

MLA引文

Jan Berenstain; Stan Berenstain. The Berenstain Bears Down on the Farm (I Can Read Level 1). HarperCollins, 2006.

警告：这些引文格式不一定是100％准确.