Singewald, Joseph Theophilus <br/><br/>
Geological Map of South America; Part 2 Foreword and Explanation of Legend (In English, Portuguese, and Spanish) 

 - Boulder, CO  Geological Society of America  1945 
 - 20 p.  mapa 
 - Geological Society of America. Special Paper  n.61 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>MAPAS GEOLOGICOS
<br/><br/><label>Subjects--Geographic Terms: </label><br/>AMERICA DEL SUR