Piersol, Robert James,  1890- <br/><br/>
Porosity, total liquid saturation, and permeability of Illinois oil sands, 
by R. J. Piersol, L. E. Workman and M. C. Watson. 
 - Urbana, Ill.,  1940. 
 - 72 p.  incl. illus., tables, diagrs.  25 cm. 
<br/><br/> At head of title: State of Illinois...Department of registration and education...Division of the State geological survey...  Printed by authority of the state of Illinois. 
<br/><br/>Bibliographical foot-notes. 
<br/><br/><label>LCCN: </label>gs 40000332  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sand.<br/>Petroleum--Illinois.
<br/><br/><label>LC Class. No.: </label>TN871  / .P5