Watkins, M. D. (2013). The first 90 days: Proven strategies for getting up to speed faster and smarter. Boston, Massachusetts: Harvard Business Review Press.
Chicago-tyylinen lähdeviittausWatkins, Michael D. The First 90 Days: Proven Strategies for Getting Up to Speed Faster and Smarter. Boston, Massachusetts: Harvard Business Review Press, 2013.
MLA-viiteWatkins, Michael D. The First 90 Days: Proven Strategies for Getting Up to Speed Faster and Smarter. Boston, Massachusetts: Harvard Business Review Press, 2013.
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