Clarke, Frank Wigglesworth,  1847-1931. <br/><br/>
The data of geochemistry / 
by Frank Wigglesworth Clarke. 
 - 4th ed. 
 - Washington :  G.P.O.,  1920. 
 - 832 p. ;  24 cm. 
 - Bulletin / Department of the Interior, United States Geological Survey ;  695 .
 - Geological Survey bulletin ;  695. .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>LCCN: </label>gs 20000193  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geochemistry.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 695