Before revision: {{cite book| last =Perrow| first =Charles| authorlink =Charles Perrow| title =Normal Accidents: Living with high-risk technologies| publisher =Princeton University Press| date =1999| isbn =0691004129 > Condensate polishers are important in systems using the boiling and condensing of water to transport or transform thermal energy.
After revision: {{cite book| last =Perrow| first =Charles| authorlink =Charles Perrow| title =Normal Accidents: Living with high-risk technologies| publisher =Princeton University Press| date =1999| isbn =0691004129 Condensate polishers are important in systems using the boiling and condensing of water to transport or transform thermal energy.