APA (7th ed.) Citation

Congigliaro, P., & Tae Won Yu. (2016). My first baby signs. Workman Publishing.

Chicago Style (17th ed.) Citation

Congigliaro, Phil, and Tae Won Yu. My First Baby Signs. New York: Workman Publishing, 2016.

MLA (9th ed.) Citation

Congigliaro, Phil, and Tae Won Yu. My First Baby Signs. Workman Publishing, 2016.