Cohen, Michael D. Leadership and ambiguity the American college president Michael D. Cohen and James G. March. - 2nd ed. - Boston, Mass. Harvard Business School Press 1986. - 298 p. : ill. ; 25 cm. references p. 231-234 ISBN: 0875841740 LCCN: 85-27268 Subjects--Topical Terms: College presidents--United States.