Buchanan, James M Tullock, Gordon <br/><br/>
Calculas of consent: Logical foundations of constitutional democracy 

 - Ann Arbor  the university of Michigan press  1962 
 - XII, 361p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Democracy<br/>Democratic ethics<br/>Politics<br/>Pressure groups<br/>Rationality