References
Energy Saving Trust (2014), Energy Saving Calculator. Available at http://www.energysavingtrust.org.uk/ Heating-and-hot-water/ Saving-money-on-water/ Water-Energy-Calculator [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] (Accessed 5 September 2014).
Environment Agency (2013) Save Water [Online]. Available at http://webarchive.nationalarchives.gov.uk/20140328084622/http://www.environment-agency.gov.uk/homeandleisure/beinggreen/117266.aspx (Accessed 5 September 2014).