Esbaum, J. (2009). Apples for everyone. National Geographic.
Cita Chicago Style (17a ed.)Esbaum, Jill. Apples for Everyone. Washington, D.C.: National Geographic, 2009.
Cita MLA (8a ed.)Esbaum, Jill. Apples for Everyone. National Geographic, 2009.
Precaución: Estas citas no son 100% exactas.