APA-ийн эшлэл(7 дахь хэвлэлт)
European Monitoring Centre for Drugs and Drug Addiction. (2020). European Drug Report 2020. Trends and Developments. Publications Office of the European Union.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
European Monitoring Centre for Drugs and Drug Addiction. European Drug Report 2020. Trends and Developments. Luxemburgo: Publications Office of the European Union, 2020.
MLA -ийн эшлэл (9 дэх хэвлэлт)
European Monitoring Centre for Drugs and Drug Addiction. European Drug Report 2020. Trends and Developments. Publications Office of the European Union, 2020.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.