Buettner, D., & Barrett, J. (2015). The Blue Zones solution: Eating and living like the world's healthiest people (Unabridged.). Blackstone Audio, Inc..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Buettner, Dan, و Joe Barrett. The Blue Zones Solution: Eating and Living like the World's Healthiest People. Unabridged. [Ashland, Oregon]: Blackstone Audio, Inc., 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Buettner, Dan, و Joe Barrett. The Blue Zones Solution: Eating and Living like the World's Healthiest People. Unabridged. Blackstone Audio, Inc., 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.