(2014). National geographic: The future of food. Washington, DC: National Geographic Society.
استشهاد بنمط شيكاغوNational Geographic: The Future of Food. Washington, DC: National Geographic Society, 2014.
MLA استشهادNational Geographic: The Future of Food. Washington, DC: National Geographic Society, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.