Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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

Precaución: Estas citas no son 100% exactas.