@techreport{ONS2013,
author = {ONS},
title= {Annual Mid-year Population Estimates, 2011 and 2012},
year = {2013},
URL = {http://www.ons.gov.uk/ons/rel/pop-estimate/population-estimates-for-uk--england-and-wales--scotland-and-northern-ireland/mid-2011-and-mid-2012/stb---mid-2011---mid-2012-uk-population-estimates.html},
note = {Titchfield: Office for National Statistics. (retrieved on 15/08/2013)},
}