Dunbar, Carl Owen <br/><br/>
La tierra 
Carl O. Dunbar. 
 - 2. ed. 
 - Barcelona  Destino-Barcelona  1976. 
 - 392 p.  ill. (mainly col.)  27 cm. 
 - Historia natural Destino  1 .
<br/><br/><label>ISBN: </label>8423300129 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spanish language--Non-fiction.<br/>Tierra
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Earth