Comparison of Sources of Power and Authority
 Peabody (1962) Blau and Scott (1962) Weber (1947)
 French and Raven (1968) Mintzberg
(1983a)
Legitimate
Formal
Power Formal
authority
 Formal
authority
 Bureaucratic
authority
 Reward power and legitimate power
 System of authority
Legitimate
Informal
Power Functional
authority Informal
authority Charismatic authority and traditional authority  Referent power and expert power
 System of ideology and system of expertise
Illegitimate
Formal
Power Coercive power* 
Illegitimate
Informal
Power System of politics*