Rubin, G. (2017). The four tendencies: The indispensable personality profiles that reveal how to make your life better (and other people's lives better, too) (First edition.). Harmony Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRubin, Gretchen. The Four Tendencies: The Indispensable Personality Profiles That Reveal How to Make Your Life Better (and Other People's Lives Better, Too). First edition. New York: Harmony Books, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRubin, Gretchen. The Four Tendencies: The Indispensable Personality Profiles That Reveal How to Make Your Life Better (and Other People's Lives Better, Too). First edition. Harmony Books, 2017.
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