1. Engineering sustainability: thermodynamics, energy systems, and the environment;Hammond;International Journal of Energy Research,2004
2. Digest of United Kingdom energy statistics 2008;BERR,2008
3. Emissions of carbon dioxide, methane and nitrous oxide by NC source catergory, fuel type and end user,2008
4. Meeting the energy challenge – a white paper on energy;DTI,2007
5. Heat and energy saving strategy: consultation;DECC,2009