Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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

Precaución: Estas citas no son 100% exactas.