Robertson, David Bruce <br/><br/>
A theory of party competition 
/ David Robertson. 
 - London:  John Wiley & Sons,  1976. 
 - x, 210 p. : ill. ;   24 cm. 
<br/><br/>Bibliography: p. 208-210. 
<br/><br/><label>ISBN: </label>0471727377 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political parties<br/>Democracy