Cita APA (7a ed.)

Bouler, O. (2011). Olivia's birds: Saving the Gulf. Sterling Children's Books.

Cita Chicago Style (17a ed.)

Bouler, Olivia. Olivia's Birds: Saving the Gulf. New York: Sterling Children's Books, 2011.

Cita MLA (8a ed.)

Bouler, Olivia. Olivia's Birds: Saving the Gulf. Sterling Children's Books, 2011.

Precaución: Estas citas no son 100% exactas.