International seminar new way to save energy :  Condensed version of papers / 
Commission of the european communities 
 - 1 volumen (en varias paginaciones) 
<br/><br/> Texto bilingue  "energy r and d programme (1975-1979) results of energy conservation research" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservación de la energía--Congresos
<br/><br/><label>LC Class. No.: </label>TJ163.27  / I57 1979