TY - BOOK AU - Porges,F. TI - HVAC engineer's handbook SN - 0750646063 U1 - 697 20 PY - 2001///.[Reprinted 2004] CY - New York PB - McGraw-Hill KW - Heating KW - Ventilation KW - Air conditioning N1 - bibliography: p. 251-254 ER -