APA (7. basım) Alıntı

National Geographic Society (U.S.). (1988). Living on the earth. National Geographic Society.

Chicago Style (17. basım) Atıf

National Geographic Society (U.S.). Living on the Earth. Washington, D.C: National Geographic Society, 1988.

MLA (9th ed.) Atıf

National Geographic Society (U.S.). Living on the Earth. National Geographic Society, 1988.