APA-viite (7. p.)
(2021). European Questionnaire on Drug Use among People living in Prison (EQDP). Long version. European Monitoring Centre for Drugs and Drug Addiction.
Chicago-viite (17. p.)
European Questionnaire on Drug Use Among People Living in Prison (EQDP). Long Version. Lisboa: European Monitoring Centre for Drugs and Drug Addiction, 2021.
MLA-viite (9. p.)
European Questionnaire on Drug Use Among People Living in Prison (EQDP). Long Version. European Monitoring Centre for Drugs and Drug Addiction, 2021.
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