Clark, William H, P. E. <br/><br/>
Retrofitting for energy conservation / 
William Clark. 
 - New York :  McGraw-Hill,  1997. 
 - xiii, 134p :  ill. ;  23 cm. 
<br/><br/>Includes index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0070119201 
<br/><br/><label>LCCN: </label>9726079  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Buildings--Energy conservation.