Effron, M. (2018). 8 steps to high performance: Focus on what you can change (ignore the rest). Boston, Massachusetts: Harvard Business Review Press.
Chicago-tyylinen lähdeviittausEffron, Marc. 8 Steps to High Performance: Focus On What You Can Change (ignore the Rest). Boston, Massachusetts: Harvard Business Review Press, 2018.
MLA-viiteEffron, Marc. 8 Steps to High Performance: Focus On What You Can Change (ignore the Rest). Boston, Massachusetts: Harvard Business Review Press, 2018.
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