The effect on energy usage of extending British Summer Time : oral and written evidence, Thursday 28 October 2010 : Dr Elizabeth Garnsey and Dr Simon Hill, University of Cambridge, and Alan Smart, Energy Operations Manager, National Grid /
Great Britain.Parliament.House of Commons.Energy and Climate Change Committee.
Great Britain.Parliament.House of Commons.
London : Stationery Office,
2011.
"Session 2010-12."