Drucker, P. F. (2017). Managing Oneself and What Makes an Effective Executive. Harvard Business Review Press.
Chicago-referens (17:e uppl.)Drucker, Peter F. Managing Oneself and What Makes an Effective Executive. Boston, Massachusetts: Harvard Business Review Press, 2017.
MLA-referens (9:e uppl.)Drucker, Peter F. Managing Oneself and What Makes an Effective Executive. Harvard Business Review Press, 2017.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.