Grohskopf, John Gustave,  1903- <br/><br/>
Insoluble residues of some Paleozoic formations of Missouri,  their preparation, characteristics and application, 
by John G. Grohskopf and Earl McCracken. 
 - Rolla,  1949. 
 - 39 p.  illus.  23 cm. 
 - Missouri. Dept. of Business and Administration. Division of Geological Survey and Water Resources. Report of investigations,  no. 10 .
 - Missouri.  Department of Business and Administration.  Division of Geological Survey and Water Resources.  Report of investigations,  no. 10. .
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>LCCN: </label>gs 49000157  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Missouri.<br/>Geology, Stratigraphic--Paleozoic.<br/>Rocks--Analysis.
<br/><br/><label>LC Class. No.: </label>QE131  / .A25 no. 10 
<br/><br/><label>Dewey Class. No.: </label>551.72