Levy, B. (2022). Breaking the age code: How your beliefs about aging determine how long & well you live (First edition.). William Morrow, an imprint of HarperCollins Publishers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Levy, Becca. Breaking the Age Code: How Your Beliefs About Aging Determine How Long & Well You Live. First edition. New York, NY: William Morrow, an imprint of HarperCollins Publishers, 2022.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Levy, Becca. Breaking the Age Code: How Your Beliefs About Aging Determine How Long & Well You Live. First edition. William Morrow, an imprint of HarperCollins Publishers, 2022.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.