APA (7 वां संस्करण) प्रशस्ति पत्र
National Records of Scotland. (2019). Drug-related deaths in Scotland in 2018. National Records of Scotland.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
National Records of Scotland. Drug-related Deaths in Scotland in 2018. Edimburgo: National Records of Scotland, 2019.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
National Records of Scotland. Drug-related Deaths in Scotland in 2018. National Records of Scotland, 2019.
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