APA ציטוט

National Geographic Society (U.S.). (1991). National Geographic picture atlas of our world. The National Geographic Society.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). National Geographic Picture Atlas of Our World. Washington D.C: The National Geographic Society, 1991.

ציטוט MLA

National Geographic Society (U.S.). National Geographic Picture Atlas of Our World. The National Geographic Society, 1991.