Wulfinghoff, Donald R. <br/><br/>
Energy efficiency manual :  for everyone who uses energy, pays for utilities, controls energy usage, desings and builds, is interested in energy and environmental preservation / 
Donald R. Wulfinghoff. 
 - Wheaton, Md. :  Energy Institute Press,  1999. 
 - 1531 s. :  il. ;  28 cm. 
<br/><br/>Indeks. 
<br/><br/><label>ISBN: </label>0965792676 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oszczędzanie energii.<br/>Energia--konsumpcja.
<br/><br/><label>Universal Decimal Class. No.: </label>620.9 : 338.45