Langley Billy C  1931 <br/><br/>
Heat pump technology / 
Billy C. Langley. 
 - 3rd ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  c2002. 
 - viii, 536 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0130339652 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heat pumps
<br/><br/><label>LC Class. No.: </label>TJ262 
<br/><br/><label>Dewey Class. No.: </label>621.402/5