Click on the logos to access usage guides:

To find out more about the University of Cambridge's view on plagiarism and good academic practice, as well as further advice on how and when to reference, visit these guidance pages.

OSCOLA - Oxford Standard for Citation of Legal Authorities

As official publications are often cited by lawyers, OSCOLA, is the style that deals with the topic most comprehensively. It is also freely available.

• Harvard 
  The most commonly used style of referencing; used widely in academic journals
  Guide to Harvard Referencing from Imperial College, London
• APA (American Psychological Association)
  Citation technique usually used in the Social Sciences
  APA style website
• Chicago
  Style guide for typographical and citation techniques often used by academic publishers
  Chicago Manual of Style online
• IEEE (Institute of Electrical and Electronics Engineers) 
  Standards Development Lifecycle; writing and referencing guidance used in the fields of Engineering and Technology
• MLA (Modern Language Association)
  Citation technique used particularly in academic writing for languages and literature
  MLA Style Centre; writing resources
• MRHA (Modern Humanities Research Association) 
  Citation style used for academic theses and essays in the Humanities
  Download the MRHA style guide
• Vancouver
  Style of referencing using a numerical system - often used in medical writing
  Guide to Vancouver Referencing from Imperial College, London

This House of Commons information factsheet has some information (page 5) on how to cite Hansard and committee debates.