Political innovation and conceptual chance / 
edited by Terence Ball, James Farr and Russell L. Hanson 
 - New York :  Cambridge University Press,  1989       
 - x, 366 p. 
 - Ideas in context .
<br/><br/><label>ISBN: </label>0521351901 
<br/><br/><label>LC Class. No.: </label>JA 61 P769 1989