Report given by the Add Hoc committe on heat pumps,July 1978. 

 - London :  World Energy,  1979. 
 - 43 pages :  illustrations ;  30 cm. 
<br/><br/><label>ISBN: </label>X920046576 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heat pumps--Congress.