Northrup, C. (2013). The normal bar: The surprising secrets of happy couples and what they reveal about creating a new normal in your relationship.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Northrup, Chrisanna. The Normal Bar: The Surprising Secrets of Happy Couples and What They Reveal About Creating a New Normal in Your Relationship. 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Northrup, Chrisanna. The Normal Bar: The Surprising Secrets of Happy Couples and What They Reveal About Creating a New Normal in Your Relationship. 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.