Simpson, George Gaylord,  1902- <br/><br/>
Discoverers of the lost world / 
George Gaylord Simpson 
 - New Haven :  Yale University Press,  c1984 
 - viii, 222 p. :  ill. ;  25 cm. 
<br/><br/> Includes index  Includes index 
<br/><br/><label>ISBN: </label>0300031882 :  USD 23.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mammals, Fossil--South America<br/>Paleontology--South America<br/>Paleontologists--Biography
<br/><br/><label>Dewey Class. No.: </label>569.098