@article{198031,
      note = {A/AC.115/L.531.},
      url = {http://digitallibrary.un.org/record/198031},
      title = {Letter dated 29 July 1980 from Mr. Oliver R. Tambo,  President of the African National Congress, to the Chairman  of the Special Committee against Apartheid, Mr. B. A.  Clark, concerning the anniversary of the Freedom Charter.},
      publisher = {UN,},
      recid = {198031},
      pages = {2 p.},
      address = {New York :. 1980-09-15},
      year = {1980},
      month = {Sep},
}