@article{168517,
      note = {Estimates updated as of 28 February 1993 = Evaluations a  jour au 28 février 1993 = Previones actualizades al 28 de  febrero de 1993.},
      url = {http://digitallibrary.un.org/record/168517},
      title = {Narcotic drugs : estimated world requirements for 1993,  statistics for 1991. Supplement no. 2 = Stupéfiants :  évaluations des besoins du monde pour 1993, statistiques  pour 1991. Supplément no 2 = Estupefacientes : previsiones  de las necesidades mundiales para 1993, estadisticas para  1991. Suplemento no. 2.},
      publisher = {UN,},
      recid = {168517},
      pages = {19 p.},
      address = {Vienna :. 1993},
      year = {1993},
}