APA-ийн эшлэл(7 дахь хэвлэлт)
European Monitoring Centre for Drugs and Drug Addiction. (2020). Impact of COVID-19 on patterns of drug use and drug-related harms in Europe. European Monitoring Centre for Drugs and Drug Addiction.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
European Monitoring Centre for Drugs and Drug Addiction. Impact of COVID-19 on Patterns of Drug Use and Drug-related Harms in Europe. Lisboa: European Monitoring Centre for Drugs and Drug Addiction, 2020.
MLA -ийн эшлэл (9 дэх хэвлэлт)
European Monitoring Centre for Drugs and Drug Addiction. Impact of COVID-19 on Patterns of Drug Use and Drug-related Harms in Europe. European Monitoring Centre for Drugs and Drug Addiction, 2020.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.