Pfeffer, J. (1998). The human equation: Building profits by putting people first. Harvard Business School Press.
Chicago-tyylinen lähdeviittausPfeffer, Jeffrey. The Human Equation: Building Profits by Putting People First. Boston: Harvard Business School Press, 1998.
MLA-viitePfeffer, Jeffrey. The Human Equation: Building Profits by Putting People First. Harvard Business School Press, 1998.
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