@article{708353,
      note = {By the Special Unit on Commodities, UNCTAD.},
      url = {http://digitallibrary.un.org/record/708353},
      title = {Commodities at a glance},
      publisher = {UN,},
      recid = {708353},
      address = {Geneva :. 2011},
      year = {2011},
}