APA-viite (7. p.)
World Health Organization. (2019). European tobacco use. Trends report 2019. World Health Organization Regional Office for Europe.
Chicago-viite (17. p.)
World Health Organization. European Tobacco Use. Trends Report 2019. Copenhague: World Health Organization Regional Office for Europe, 2019.
MLA-viite (9. p.)
World Health Organization. European Tobacco Use. Trends Report 2019. World Health Organization Regional Office for Europe, 2019.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.