Heap/ R.D./ Landel/ R.D.  <br/><br/>
Heat Pumps 

 - London  E & F.N. Spa Ltd.  1979 
 - 155 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Heat Pumps
<br/><br/><label>Dewey Class. No.: </label>697.07