Mike Berenstain. (2017). The Berenstain Bears' Big Machines (I Can Read Level 1). HarperCollins.
Čikaški stil citiranja (17. izdanje)Mike Berenstain. The Berenstain Bears' Big Machines (I Can Read Level 1). HarperCollins, 2017.
MLA način citiranja (9. izdanje)Mike Berenstain. The Berenstain Bears' Big Machines (I Can Read Level 1). HarperCollins, 2017.
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