Clifton, D. O. (2016). First, break all the rules: What the world's greatest managers do differently ([New edition].). Gallup Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClifton, Donald O. First, Break All the Rules: What the World's Greatest Managers Do Differently. [New edition]. New York, NY.: Gallup Press, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रClifton, Donald O. First, Break All the Rules: What the World's Greatest Managers Do Differently. [New edition]. Gallup Press, 2016.
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