Sullivan, C. (2013). The clarity principle: How great leaders act decisively to define their business (and what happens when they don't). Jossey-Bass.
Chicago-referens (17:e uppl.)Sullivan, Chatham. The Clarity Principle: How Great Leaders Act Decisively to Define Their Business (and What Happens When They Don't). San Francisco, California: Jossey-Bass, 2013.
MLA-referens (9:e uppl.)Sullivan, Chatham. The Clarity Principle: How Great Leaders Act Decisively to Define Their Business (and What Happens When They Don't). Jossey-Bass, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.