Sperry, J. S. <br/><br/>
Development and field testing of a process for recovering h-eavy crude oil in the carlyle pool - allen county, Kansas u-sing the vapor therm generator final report / J. S. Sperry,- F.S. Young, Jr., R. S. Poston. 

 - Bartlesville, Okla. : Department of Energy 
 - 44 p.