@article{187071,
      note = {Estimates updated as of 31 January 1993 = Evaluations a  jour au 31 janvier 1993 = Previsiones actualizadas al 31 de  enero de 1993.},
      url = {http://digitallibrary.un.org/record/187071},
      title = {Narcotic drugs : estimated world requirements for 1993,  statistics for 1991. Supplement no. 1 = Stupéfiants :  évaluations des besoins du monde pour 1993, statistiques  pour 1991. Supplément no 1 = Estupefacientes : previsiones  de las necesidades mundiales para 1993, estadisticas para  1991. Suplemento no. 1.},
      publisher = {UN,},
      recid = {187071},
      pages = {20 p. :},
      address = {Vienna :. 1993},
      year = {1993},
}