Catherine Hapka. (2013). Pony Scouts: Blue Ribbon Day (I Can Read Level 2) (I Can Read Book 2.). HarperCollins.
Chicago-viite (17. p.)Catherine Hapka. Pony Scouts: Blue Ribbon Day (I Can Read Level 2). I Can Read Book 2. HarperCollins, 2013.
MLA-viite (9. p.)Catherine Hapka. Pony Scouts: Blue Ribbon Day (I Can Read Level 2). I Can Read Book 2. HarperCollins, 2013.
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