APA (7th ed.) Citation

Halls, K. M., & Sumner, W. (2010). Saving the Baghdad Zoo: A true story of hope and heroes. Greenwillow Books.

Chicago Style (17th ed.) Citation

Halls, Kelly Milner, and William Sumner. Saving the Baghdad Zoo: A True Story of Hope and Heroes. New York: Greenwillow Books, 2010.

MLA (8th ed.) Citation

Halls, Kelly Milner, and William Sumner. Saving the Baghdad Zoo: A True Story of Hope and Heroes. Greenwillow Books, 2010.

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