Ulrich, D. &. o. (2008). The Leadership code: Five rules to lead by. Harvard Business School Press.
Chicago-viite (17. p.)Ulrich, Dave & others. The Leadership Code: Five Rules to Lead by. Boston: Harvard Business School Press, 2008.
MLA-viite (9. p.)Ulrich, Dave & others. The Leadership Code: Five Rules to Lead by. Harvard Business School Press, 2008.
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