Tar sands :  hearing before Subcommittee on Minerals, Materials, and Fuels, 91st Congress, 2d session, on S. 581 [and] S. 582, July 13, 1970. 

 - [Washington, D.C.],  1970. 
 - iii, 70 p. 
<br/><br/> [Hearing held in Salt Lake City, Utah].  Distribution made by issuing office.  CRDP Program Historic Shelflist record. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bitumen--United States.<br/>Public lands--United States.<br/>Leases--United States.
<br/><br/><label>GPO Item No.: </label>1040 
<br/><br/><label>Gov. Doc. Class. No.: </label>Y 4.IN 8/13:T 17