Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.