Pei, R.Y., <br/><br/>
The effects of lease size on yields from oil shale surface mines / 
R.Y. Pei, D.S. Rubenson ; prepared for the Department of Energy. 
 - xi, 29 pages :  illustrations ;  28 cm. 
 - A Rand note ;  N-1798-DOE .
 - Rand note ;  N-1798-DOE .
<br/><br/>Includes bibliographical references (page 29) 
<br/><br/><label>ISBN: </label> Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oil-shales.<br/>Strip mining.<br/>Mining leases.