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.
Cita Chicago Style (17a ed.)Rubin, 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.
Cita MLA (8a ed.)Rubin, 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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