Apgar, David. Risk intelligence : learning to manage what we don't know / David Apgar. - Boston, Mass. : Harvard Business School Press, c2006. - xi, 210 p. : ill ; 25 cm. ISBN: 1591399548 9781591399544 LCCN: 2006002371 Subjects--Topical Terms: Risk management. Dewey Class. No.: 658.15/5