एपीए उद्धरण

(2014). National geographic: The future of food. Washington, DC: National Geographic Society.

शिकागो स्टाइल उद्धरण

National Geographic: The Future of Food. Washington, DC: National Geographic Society, 2014.

एमएलए उद्धरण

National Geographic: The Future of Food. Washington, DC: National Geographic Society, 2014.