Cohen, Carl,  1931- <br/><br/>
Four systems / 
Carl Cohen. 
 - 1st ed. 
 - New York :  Random House,  c1982. 
 - xvi, 249 p. ;  20 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0075543052 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Democracy.<br/>Fascism.<br/>Communism.<br/>Socialism.
<br/><br/><label>Dewey Class. No.: </label>321