Aptheker, Herbert <br/><br/>
The nature of democracy freedom and revolution. / 
Herbert Aptheker. 
 - New York, Estados Unidos :  International Publishers,  1967. 
 - 128 p. ;  18 cm. 
<br/><br/> the library has the second reprint of 1969 
<br/><br/><label>Dewey Class. No.: </label>xxx  / xxx