Não informado. (1981). Refrigeration, Air Conditioning and Heat Recovery. Maclaren Publishers.
Chicago-Zitierstil (17. Ausg.)Não informado. Refrigeration, Air Conditioning and Heat Recovery. Croydon, Inglaterra: Maclaren Publishers, 1981.
MLA-Zitierstil (8. Ausg.)Não informado. Refrigeration, Air Conditioning and Heat Recovery. Maclaren Publishers, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.