Não informado. (1981). Refrigeration, Air Conditioning and Heat Recovery. Maclaren Publishers.
Chicago-referens (17:e uppl.)Não informado. Refrigeration, Air Conditioning and Heat Recovery. Croydon, Inglaterra: Maclaren Publishers, 1981.
MLA-referens (8:e uppl.)Não informado. Refrigeration, Air Conditioning and Heat Recovery. Maclaren Publishers, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.