Catherine Hapka. (2013). Pony Scouts: Blue Ribbon Day (I Can Read Level 2) (I Can Read Book 2.). HarperCollins.
Citazione stile Chigago Style (17a edizione)Catherine Hapka. Pony Scouts: Blue Ribbon Day (I Can Read Level 2). I Can Read Book 2. HarperCollins, 2013.
Citatione MLA (9a ed.)Catherine Hapka. Pony Scouts: Blue Ribbon Day (I Can Read Level 2). I Can Read Book 2. HarperCollins, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.