APA (7th ed.) Citation

Hughes, S., & Poulin, S. (2005). Earth to Audrey. Kids Can Press.

Chicago Style (17th ed.) Citation

Hughes, Susan, and Stéphane Poulin. Earth to Audrey. Toronto: Kids Can Press, 2005.

MLA (8th ed.) Citation

Hughes, Susan, and Stéphane Poulin. Earth to Audrey. Kids Can Press, 2005.

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