Parr, Samuel Wilson,  1857-1931. <br/><br/>
Purchase and sale of Illinois coal on specification, 
by S. W. Parr. Work in cooperation with Illinois coal mining investigations, and University of Illinois. 
 - Urbana,  Illinois state geological survey, University of Illinois,  1914. 
 - 80 p.  illus., fold. map.  26 cm. 
<br/><br/><label>LCCN: </label>gs 15000381  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--Illinois.
<br/><br/><label>LC Class. No.: </label>QE105  / .A16 no. 29