International conference on heavy crude and tar sands: 2. Summary report 

 - Caracas:  UNITAR,  1982 
 - 27 p. 
<br/><br/>06439 
<br/><br/>Resources. International cooperation. Production. Enviroment. Technological developments. Upgrading and refining. Marketing. The future of heavy crude oil and tar sands, an overview. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petróleo<br/>Medio Ambiente<br/>Congresos y Conferencias
<br/><br/><label>Dewey Class. No.: </label>665.5  / U5813 / n.2 - 5