APA (7th ed.) Citation

Powell, J., & Colnaghi, S. (2014). Let's say hello. Capstone Press.

Chicago Style (17th ed.) Citation

Powell, Jillian, and Stefania Colnaghi. Let's Say Hello. Minnesota: Capstone Press, 2014.

MLA (9th ed.) Citation

Powell, Jillian, and Stefania Colnaghi. Let's Say Hello. Capstone Press, 2014.