Energy international 

 - London :  MILLER FREEMAN PUBL., 
 - Mensual 
<br/><br/><label>ISSN: </label>0013-7529 
 = Energy international 
 = ENERGY INT. 
<br/><br/><label>Subjects--Index Terms: </label>ENERGIA INGENIERIA ELECTRICA;  INGENIERIA  MECANICA