Energy statistics yearbook = Annuaire des statistiques de l'energie 

 - New York  United Nations  1997 
<br/><br/>06948 al 06949 
<br/><br/> Conversion factors. Commercial energy production, trade and consumption. Solid fuels. Liquid fuels. Gaseous fuels. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENERGIA<br/>GAS NATURAL<br/>PETROLEO<br/>ENERGIA ELECTRICA<br/>ECONOMIA<br/>ESTADISTICA
<br/><br/><label>Dewey Class. No.: </label>R1  / 3