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Cocaína & co. : un mercado ilegal por dentro
Sarmiento, Luis F., (1991)
(Mid-Atlantic region) Organized Crime and Drug Enforcement Task Force : hearing before the Committee on the Judiciary, United States Senate, 98th Congress, 1st session ..., Dover, Delaware, December 13, 1983
(1984)
The market for illegal drugs in the Soviet Union in the late 1980s
Neuhauser, Kimberly C., (1990)