Lua APA (7ú heag.)

Kallie George. (2017). "Duck, Duck, Dinosaur: Snowy Surprise (My First I Can Read)". HarperCollins.

Lua i Stíl Chicago (17ú heag.)

Kallie George. "Duck, Duck, Dinosaur: Snowy Surprise (My First I Can Read)". HarperCollins, 2017.

Lua MLA (9ú heag.)

Kallie George. "Duck, Duck, Dinosaur: Snowy Surprise (My First I Can Read)". HarperCollins, 2017.

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