Watkins, M. (2013). The first 90 days: Proven strategies for getting up to speed faster and smarter (Updated and expanded [edition].). Harvard Business Review Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWatkins, Michael. The First 90 Days: Proven Strategies for Getting Up to Speed Faster and Smarter. Updated and expanded [edition]. Boston, Massachusetts: Harvard Business Review Press, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWatkins, Michael. The First 90 Days: Proven Strategies for Getting Up to Speed Faster and Smarter. Updated and expanded [edition]. Harvard Business Review Press, 2013.
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