1. Credibility
:KOUZES, James M. - POSNER, Barry Z. Credibility : How Leaders Gain and Lose It, Why People Demand It. 1. ed. San Francisco : Jossey-Bass Publ., 1993. 332 s. The Jossey-Bass Management Series. ISBN 1-55542-550-X. [Copy count : 2, currently available 1, at library only 1]