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Holloway, S. W. F. "The Regulation of the Supply of Drugs in Britain Before 1868: S. W. F. Holloway." Drugs and Narcotics in History.(1996) .

Holloway, S. W. F. "The Regulation of the Supply of Drugs in Britain Before 1868: S. W. F. Holloway." Drugs and Narcotics in History.(1996), .