APA (7th ed.) Citation

Hughes, V., & Shefrin, S. E. (2010). Once upon a bathtime. Tradewind Books.

Chicago Style (17th ed.) Citation

Hughes, Vi, and Sima Elizabeth Shefrin. Once upon a Bathtime. Vancouver: Tradewind Books, 2010.

MLA (8th ed.) Citation

Hughes, Vi, and Sima Elizabeth Shefrin. Once upon a Bathtime. Tradewind Books, 2010.

Warning: These citations may not always be 100% accurate.