Actas 
XI Congreso Geológico Argentino, San Juan, 1990 
 - San Juan  [s.n.]  1990 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GEOLOGIA<br/>CONGRESO
<br/><br/><label>Subjects--Geographic Terms: </label><br/>ARGENTINA
<br/><br/><label>Universal Decimal Class. No.: </label>55 (82)