Northrup, C., Schwartz, P., & Witte, J. (2012). The normal bar: The surprising secrets of happy couples and what they reveal about creating a new normal in your relationship (First edition.). Crown Archetype.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNorthrup, Chrisanna, Pepper Schwartz, और James Witte. The Normal Bar: The Surprising Secrets of Happy Couples and What They Reveal About Creating a New Normal in Your Relationship. First edition. New York: Crown Archetype, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNorthrup, Chrisanna, et al. The Normal Bar: The Surprising Secrets of Happy Couples and What They Reveal About Creating a New Normal in Your Relationship. First edition. Crown Archetype, 2012.
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