PORGES, JOHN <br/><br/>
HANDBOOK OF HEATING VONTILATING AND AIR CONDITIONING 

 - 6TH 
 - LONDON  BUTTERWORTH  1971 
 - VII, XV, 19P 
<br/><br/><label>ISBN: </label>0-408-00052-X 
<br/><br/><label>Dewey Class. No.: </label>697.933 POR'H