APA (7e ed.) Bronvermelding

Scarborough, J. The opium poppy in Hellenistic and Roman medicine: John Scarborough. Drugs and narcotics in history.(1996).

Chicago (17e ed.) Bronvermelding

Scarborough, John. "The Opium Poppy in Hellenistic and Roman Medicine: John Scarborough." Drugs and Narcotics in History.(1996) .

MLA (8e ed.) Bronvermelding

Scarborough, John. "The Opium Poppy in Hellenistic and Roman Medicine: John Scarborough." Drugs and Narcotics in History.(1996), .