Hobbs, William Herbert <br/><br/>
Earth evolution and its facial expression. 

 - New York :  MacMillan,  1922. 
 - 178 p. :  il. ;  21,5 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>551.1