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Citing your sources

How and when citing your sources.

Why should I cite?


  • respect copyright;
  • give credit to the author of the original work;
  • add authority to your work;
  • easily find sources;
  • demonstrate your search skills;
  • avoid plagiarism.
When should I cite?

  • paraphrasing someone else's idea;
  • taking a direct quote from a source;
  • referencing another person's ideas;
  • using data (statistics, graphics, etc.)
  • translating a text.

The same rules apply to electronic sources.

Public Notoriety

It is not necessary to quote a well known fact, that is to say, a fact that is in principle known to all.

Ex.: The stock market crash of 1929.

French version