Mackenzie, W. J. M. <br/><br/>
Politics and social science 
/ W. J. M. Mackenzie 
. - Baltimore ;   Maryland  : Penguin books, 1969
. - 424 p.  ; 18 cm. 
<br/><br/>Index. 
<br/><br/><label>Source: </label>33098 
<br/><br/><label>Universal Decimal Class. No.: </label>320.