Kelly, George. <br/><br/>
Dynamic performance of a residential air-to-air heat pump   
by George Kelly, John Bean 
 - washington  NBS US Dept. of Commerce  1977 
 - iii, 12p. 
 - National Bureau of Standards Building Science Series  93 .
<br/><br/><label>LCCN: </label>76-50050 
<br/><br/><label>Dewey Class. No.: </label>621.4023  / N771