Cita APA (7a ed.)

Hughes, C. D. (2016). Little kids first big book of birds. National Geographic Partners.

Cita Chicago Style (17a ed.)

Hughes, Catherine D. Little Kids First Big Book of Birds. Washington, DC: National Geographic Partners, 2016.

Cita MLA (8a ed.)

Hughes, Catherine D. Little Kids First Big Book of Birds. National Geographic Partners, 2016.

Precaución: Estas citas no son 100% exactas.