@article{166327,
      note = {"Prepared by the Division of Data Management of the  UNCTAD".},
      url = {http://digitallibrary.un.org/record/166327},
      title = {Monthly commodity price bulletin. Vol. 13, no. 4, Apr.  1993 = Bulletin mensuel des prix des produits de base. Vol.  13, no 4, avril 1993 = Boletín mensual de precios de  productos básicos. Vol. 13, no. 4, abr. 1993.},
      publisher = {UN,},
      recid = {166327},
      pages = {vi, 18 p. :},
      address = {Geneva :. 1993-05},
      year = {1993},
      month = {May},
}