APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.