The efficient use of energy  (Book) 

 - Surrey  IPC Science and Technology  1975 
 - 602 p.   24 cm. 
<br/><br/><label>ISBN: </label>0902852337 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Power resources Steam-boilers
<br/><br/><label>Universal Decimal Class. No.: </label>620.9 DRY  / 13933