APA (7 वां संस्करण) प्रशस्ति पत्र
(2020). EU drug markets. Impact of Covid-19. European Monitoring Centre for Drugs and Drug Addiction Europol.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
EU Drug Markets. Impact of Covid-19. European Monitoring Centre for Drugs and Drug Addiction Europol, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
EU Drug Markets. Impact of Covid-19. European Monitoring Centre for Drugs and Drug Addiction Europol, 2020.
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