APA-referens (7:e uppl.)

Maehle, A. Pharmacological experimentation with opium in the eighteenth century: Andreas-Holger Maehle. Drugs and narcotics in history.(1996).

Chicago-referens (17:e uppl.)

Maehle, Andreas-Holger. "Pharmacological Experimentation with Opium in the Eighteenth Century: Andreas-Holger Maehle." Drugs and Narcotics in History.(1996) .

MLA-referens (8:e uppl.)

Maehle, Andreas-Holger. "Pharmacological Experimentation with Opium in the Eighteenth Century: Andreas-Holger Maehle." Drugs and Narcotics in History.(1996), .