Williams, A. (2013). Research: Improve your reading and referencing skills. HarperCollins.
Chicago-viite (17. p.)Williams, Anneli. Research: Improve Your Reading and Referencing Skills. London: HarperCollins, 2013.
MLA-viite (8. p.)Williams, Anneli. Research: Improve Your Reading and Referencing Skills. HarperCollins, 2013.
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