Citazione Stile APA (7a Edizione)

National Geographic. (2008). The science book: Everything you need to know about the world and how it works. National Geographic.

Citazione stile Chigago Style (17a edizione)

National Geographic. The Science Book: Everything You Need to Know About the World and How It Works. Washington, D.C: National Geographic, 2008.

Citatione MLA (9a ed.)

National Geographic. The Science Book: Everything You Need to Know About the World and How It Works. National Geographic, 2008.