Ladd, Harry S. <br/><br/>
Treatise on marine geology and paleoecology. volume 2: Paleoecology 

 - New York  Geological Society of America  1957 
 - x, 1077 p.  ilus. 
 - Geological Society of America. Memoir  v.67 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>AMBIENTE MARINO<br/>ORIGEN DE LA VIDA<br/>PALEOBIOGEOGRAFIA<br/>PALEOBIOGEOQUIMICA<br/>PALEOECOLOGIA MARINA