Porges, John. <br/><br/>
Handbook of heating, ventilating and air conditioning  ready-reference tables and data 
John Porges. 
 - 7th ed. /  revised by F. Porges 
 - London ;  Newnes-Butterworths  1976. 
 - 308 p. in various pagings, 6 p. of plates (6 fold.), fold. leaf of plate  ill.  23 cm. 
<br/><br/>Bibliography: section xiv, p. 1-5. 
<br/><br/><label>ISBN: </label>0408002336 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air conditioning--Tables.<br/>Heating--Tables.<br/>Ventilation--Tables.