Iboix Estudi, Rabe, T., Posner-Sanchez, A., Lagonegro, M., Webster, C., Naggi, M. E., & Disney Storybook Artists. (2015). Frozen story collection: Step 1 and step 2 books, a collection of five early readers. New York: Random House.

Iboix Estudi, Tish Rabe, Andrea Posner-Sanchez, Melissa Lagonegro, Christy Webster, Maria Elena Naggi, and Disney Storybook Artists. Frozen Story Collection: Step 1 and Step 2 Books, a Collection of Five Early Readers. New York: Random House, 2015.

Iboix Estudi, et al. Frozen Story Collection: Step 1 and Step 2 Books, a Collection of Five Early Readers. New York: Random House, 2015.