Harvard

To be made up of:

• HC/HL Deb 
• Date of debate (in round brackets).
• vol. (volume number).
• col. (column number).
• Available at: URL.
• (Accessed: date).

‘HC’ or ‘HL’ are abbreviations for the House of Commons or the House of Lords. ‘Deb’ is an abbreviation for Debate.

In-text citation:

(HC Deb 20 January 2009).

Reference list:

HC Deb (20 January 2009). vol. 500, col. 1990. Available at: http://www.publications.parliament.uk/pa/hcdeb1990 (Accessed: 19 August 2010).