Schanzer, R. (2009). What Darwin saw: The journey that changed the world. National Geographic.
Cita Chicago Style (17a ed.)Schanzer, Rosalyn. What Darwin Saw: The Journey That Changed the World. Washington, D.C.: National Geographic, 2009.
Cita MLA (8a ed.)Schanzer, Rosalyn. What Darwin Saw: The Journey That Changed the World. National Geographic, 2009.
Precaución: Estas citas no son 100% exactas.