Congress on the Prevention of Crime and the Treatment of Offenders & Vereinte Nationen. (1991). Eighth United Nations Congress on the Prevention of Crime and the Treatment of Offenders: Havanna, 27 August - 7 September 1990. United Nations.
Cita Chicago Style (17a ed.)Congress on the Prevention of Crime and the Treatment of Offenders y Vereinte Nationen. Eighth United Nations Congress on the Prevention of Crime and the Treatment of Offenders: Havanna, 27 August - 7 September 1990. New York: United Nations, 1991.
Cita MLA (9a ed.)Congress on the Prevention of Crime and the Treatment of Offenders y Vereinte Nationen. Eighth United Nations Congress on the Prevention of Crime and the Treatment of Offenders: Havanna, 27 August - 7 September 1990. United Nations, 1991.