Langley, Billy C., 1931- <br/><br/>
Heat pump technology / 
Billy C. Langley 
 - 3rd ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  2002 
 - viii, 536 p. :  ill. ;  25 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0130339652  RM333.66 
<br/><br/><label>LCCN: </label>00-066578 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heat pumps