WARD, F. N. <br/><br/>
Analytical methods used in geochemical exploration by the U. S. Geological survey / 
by F. N. Ward, H. W. Lakin, F. C. Canney. 
 -- Washington :   United States Government Printing Office,   1963 
 - 100 p. -- 
 (Geological Survey Bulletin  ; 1152).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geoquímica
<br/><br/><label>Universal Decimal Class. No.: </label>550.4