Não informado. (2004). Journal of plumbing, heating and air conditioning. Scott Periodicals.
Chicago-referens (17:e uppl.)Não informado. Journal of Plumbing, Heating and Air Conditioning. Tarrytown, NY: Scott Periodicals, 2004.
MLA-referens (8:e uppl.)Não informado. Journal of Plumbing, Heating and Air Conditioning. Scott Periodicals, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.