Johnson, C. (2019). The 131 method: Your personalized nutrition solution to boost metabolism, restore gut health, and lose weight (First edition.). Hay House, Inc..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Johnson, Chalene. The 131 Method: Your Personalized Nutrition Solution to Boost Metabolism, Restore Gut Health, and Lose Weight. First edition. Carlsbad, California: Hay House, Inc., 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Johnson, Chalene. The 131 Method: Your Personalized Nutrition Solution to Boost Metabolism, Restore Gut Health, and Lose Weight. First edition. Hay House, Inc., 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.