Cita APA (7a ed.)

(1928). Traffic in Opium and Other Dangerous Drugs. Government Printing Office.

Cita Chicago Style (17a ed.)

Traffic in Opium and Other Dangerous Drugs. Washington: Government Printing Office, 1928.

Cita MLA (9a ed.)

Traffic in Opium and Other Dangerous Drugs. Government Printing Office, 1928.

Precaución: Estas citas no son 100% exactas.