Gaya APA
Porges, F.
(1982).
Handbook of Heating, Ventilating and Air Conditioning
(
Ed.8)
.
London:
Butterworths.
Gaya MLA
Porges, F..
"Handbook of Heating, Ventilating and Air Conditioning".
Ed.8
London:
Butterworths,
1982.
Text.