The future of energy gases 

 - Washington :  U. S. Geological survey,  1993 
 - 890 p: :  ill., carte, graph., tab. 
 - U. S. Geological Survey Professional paper, 1570 .
<br/><br/>bibliogr 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gaz naturel<br/>Energie<br/>Méthane<br/>Analyse économique
<br/><br/><label>Subjects--Index Terms: </label>Etats Unis