References
National Statistics Survey (2004) Individuals accessing the Internet – National Statistics Omnibus Survey [online] [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] [Accessed 3 March 2005].
Northedge, A., Thomas, J., Lane, A. and Peasgood, A. (1997) The Sciences Good Study Guide, Open University, Milton Keynes.