Culver, Harold Eugene,  1883- <br/><br/>
Present status of correlation of Illinois coals, 
by Harold E. Culver. 
 - Urbana, Ill.  [Springfield,  Jeffersons Printing & Stationery Co.]  1927. 
 - 13 p. 
<br/><br/> At head of title: State of Illinois. Department of registration and education. Division of the State Geological Survey. 
<br/><br/><label>LCCN: </label>gs 28000005  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Carboniferous.<br/>Coal--Illinois.
<br/><br/><label>LC Class. No.: </label>QE673  / .C8