McDonald Stephen L <br/><br/>
petroleum consevation in the United States    An ec    

 - Baltimore  John Hopkins University Press         1971 
 - xiii,279p.  cm. 
 - Resources For The Future .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum Industry
<br/><br/><label>Dewey Class. No.: </label>X9(F555).73.N7, L1