Actes du Congres, General Proceedings 

 - Paris  s.e.  1980 
 - 330 p.  ilus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CONGRESOS<br/>GEOLOGIA
<br/><br/><label>Universal Decimal Class. No.: </label>R/061.3:55(100)/C74