Handbook of heating, ventilating and air conditioning useful tables and data arranged in a manner convenient for ready reference
Porges, John.
Porges, F.(Fred)
London (88 Kingsway, WC2B 6AB) Newnes-Butterworths
1971
Previous ed., London: Newnes, 1964
bibl p[289-293]
Heating
Ventilation
Air conditioning