APA-viite (7. p.)
Smail, D. (2015). The origins of unhappiness: A new understanding of personal distress. Karnac.
Chicago-viite (17. p.)
Smail, David. The Origins of Unhappiness: A New Understanding of Personal Distress. London: Karnac, 2015.
MLA-viite (9. p.)
Smail, David. The Origins of Unhappiness: A New Understanding of Personal Distress. Karnac, 2015.
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