Cita APA

Jenkins, M. C., & Jenkins, M. C. (2013). National Geographic 125 years: Legendary photographs, adventures, and discoveries that changed the world. Washington, D.C.: National Geographic Society.

Citación estilo Chicago

Jenkins, Mark Collins, y Mark Collins Jenkins. National Geographic 125 Years: Legendary Photographs, Adventures, and Discoveries That Changed the World. Washington, D.C.: National Geographic Society, 2013.

Cita MLA

Jenkins, Mark Collins, y Mark Collins Jenkins. National Geographic 125 Years: Legendary Photographs, Adventures, and Discoveries That Changed the World. Washington, D.C.: National Geographic Society, 2013.