Kallie George. (2017). "Duck, Duck, Dinosaur: Snowy Surprise (My First I Can Read)". HarperCollins.
Cita Chicago Style (17a ed.)Kallie George. "Duck, Duck, Dinosaur: Snowy Surprise (My First I Can Read)". HarperCollins, 2017.
Cita MLA (9a ed.)Kallie George. "Duck, Duck, Dinosaur: Snowy Surprise (My First I Can Read)". HarperCollins, 2017.
Precaución: Estas citas no son 100% exactas.