Vollmer, Gerhard <br/><br/>
Was können wir wissen? 

 - Stuttgart :  Hirzel,  1986-1987 
 - 2v.;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epistemología
<br/><br/><label>Universal Decimal Class. No.: </label>165