APA (7th ed.) Citation

London, J., & Remkiewicz, F. (1995). Froggy learns to swim. Viking.

Chicago Style (17th ed.) Citation

London, Jonathan, and Frank Remkiewicz. Froggy Learns to Swim. New York: Viking, 1995.

MLA (8th ed.) Citation

London, Jonathan, and Frank Remkiewicz. Froggy Learns to Swim. Viking, 1995.