United States. Bureau of Narcotics. (1930). Traffic in opium and other dangerous drugs, for year ended Dec. 31, 1930, report by Government of U.S.A. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Narcotics. Traffic in Opium and Other Dangerous Drugs, for Year Ended Dec. 31, 1930, Report by Government of U.S.A. [Washington]: GPO, 1930.
MLA (9th ed.) CitationUnited States. Bureau of Narcotics. Traffic in Opium and Other Dangerous Drugs, for Year Ended Dec. 31, 1930, Report by Government of U.S.A. GPO, 1930.
Warning: These citations may not always be 100% accurate.