APA (7th ed.) Citation

London, J., & Remkiewicz, F. (2011). Froggy builds a tree house. Viking.

Chicago Style (17th ed.) Citation

London, Jonathan, and Frank Remkiewicz. Froggy Builds a Tree House. New York: Viking, 2011.

MLA (8th ed.) Citation

London, Jonathan, and Frank Remkiewicz. Froggy Builds a Tree House. Viking, 2011.