Dyfyniad APA

(1987). Heating, ventilation and air-conditioning systens and applications. Americal society of heating,refrigerating and air conditioning.

Dyfyniad Arddull Chicago

Heating, Ventilation and Air-conditioning Systens and Applications. Atlasnta: Americal society of heating,refrigerating and air conditioning, 1987.

Dyfyniad MLA

Heating, Ventilation and Air-conditioning Systens and Applications. Americal society of heating,refrigerating and air conditioning, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.