Richter, Charles F <br/><br/>
Elementary Seismology. 
By Charles F Richter 
 - 1st Ed. 
 - [s.l]:  W H Freeman And Company,  1958. 
 - 768p.:  15cm. 
<br/><br/>Index. 
<br/><br/><label>Subjects--Index Terms: </label>Geography & travel, Geography 
<br/><br/><label>Dewey Class. No.: </label>910