Willman, H. B.  1901- <br/><br/>
High-purity dolomite in Illinois, 
by H.B. Willman. 
 - Urbana, Ill.,  1943. 
 - 87,[2]p.  incl. maps. tables.  25cm. 
 - Illinois.  State geological survey.  Report of investigations  no. 90 .
<br/><br/> At head of title: State of Illinois, Dwight H. Green, governor.  Dept. of registration and education, Frank C. Thompson, director.  Division of the State geological survey, M.M. Leighton, chief. 
<br/><br/><label>LCCN: </label>gs 43000070  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dolomite.
<br/><br/><label>LC Class. No.: </label>QE471  / .W53 
<br/><br/><label>Dewey Class. No.: </label>552/.55