Energy policies :  Poland ... survey / 
 Energy policies of Hungary :  ... survey 
International Energy Agency 
 - Paris :  OECD,  1990- 
 - v. :  illustration ;  27 cm. 
<br/><br/> PTSL : 1990 
<br/><br/><label>ISBN: </label>9264134832 (1990) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Energy policy--Poland--Periodicals<br/>ower resources--Poland--Statistics--Periodicals