Sporn, Philip <br/><br/>
Heat pumps. 

 - New York :  J. Wiley and Sans,  1947. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bombas
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>621.65