Van Denburgh, John. <br/><br/>
Preliminary descriptions of four new races of gigantic land tortoises from the Galapagos Islands / 
John Van Denburgh. 
 -  1907. 
 - 1-6 p. 
 - Expedition of the California Academy of Sciences to the Galapagos Islands, 1905-1906 ;  no. 1 .
<br/><br/><br/>Inglés 
<br/><br/><label>Subjects--Index Terms: </label>Geochelone New races  Nuevas razas Gigantic land tortoises Tortugas terrestres gigantes Galápagos 
<br/><br/><label>Dewey Class. No.: </label>597.924