Max Weber : the processes of rationalization -- Frederick W. Taylor : the man, the method, the movement -- Luther H. Gulick : the integrated executive -- Mary Parker Follett : the group process -- Elton Mayo : the human relations approach -- Chester Barnard : organizations as systems of exchange -- Herbert A. Simon : a decision-making perspective -- Charles Lindblom : probing the policy process -- Dwight Waldo : an eclectic view of public administration -- The study of public administration : origins, development, nature.