International Conference on Drug Abuse and Illicit Trafficking 1987, Wien, Vereinte Nationen, & International Conference on Drug Abuse and Illicit Trafficking. (1987). Report of the International Conference on Drug Abuse and Illicit Trafficking: Vienna, 17 - 26 June 1987. United Nations.
Cita Chicago Style (17a ed.)International Conference on Drug Abuse and Illicit Trafficking 1987, Wien, Vereinte Nationen, y International Conference on Drug Abuse and Illicit Trafficking. Report of the International Conference on Drug Abuse and Illicit Trafficking: Vienna, 17 - 26 June 1987. New York: United Nations, 1987.
Cita MLA (8a ed.)International Conference on Drug Abuse and Illicit Trafficking 1987, Wien, et al. Report of the International Conference on Drug Abuse and Illicit Trafficking: Vienna, 17 - 26 June 1987. United Nations, 1987.