(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.