Grim, Ralph E.  1902- <br/><br/>
The mica in argillaceous sediments, 
by R. E. Grim, R. H. Bray and W. F. Bradley. 
 - Urbana,  Printed by authority of the state of Illinois,  1937. 
 - 813-829 p.  illus. 
<br/><br/> At head of title: State of Illinois. Department of Registration and Education. Division of the State Geological Survey.  "Reprinted from the American Mineralogist, v. 22, no. 7, pp. 813-829, July, 1937." 
<br/><br/><label>LCCN: </label>gs 37000321  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mica.
<br/><br/><label>LC Class. No.: </label>TN933  / .G75