Kallie George. (2017). "Duck, Duck, Dinosaur: Snowy Surprise (My First I Can Read)". HarperCollins.
芝加哥风格引文Kallie George. "Duck, Duck, Dinosaur: Snowy Surprise (My First I Can Read)". HarperCollins, 2017.
MLA引文Kallie George. "Duck, Duck, Dinosaur: Snowy Surprise (My First I Can Read)". HarperCollins, 2017.
警告：这些引文格式不一定是100％准确.