Schultz, Leonard G.  1926- <br/><br/>
Quantitative interpretation of mineralogical composition from X-ray and Chemical data for the Pierre Shale / 
by Leonard G. Schultz. 
 -- Washington :   United States Government Printing Office,   1964 
 - 31 p. + map. -- 
 (Geological Survey Professional Paper  ;  391-C).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geoquímica
<br/><br/><label>Universal Decimal Class. No.: </label>550.4