@mastersthesis{80239,
  author     = {Maḥmūd, 'Ushārī Aḥmad},
  pages      = {45},
  school     = {University of Khartoum},
  title      = {The phonology of a dying Nubian language: Birgid},
  year       = {1974},
  hhtype     = {phonology},
  inlg       = {English [eng]},
  keywords   = {;nea;sdn;lng;phn;v.185;ths;},
  langnote   = {Probably less than ten persons all over Sudan [speak it]" p 1},
  lgcode     = {Birked [brk] (autotranslated from Maho's coding system)},
  macro_area = {Africa},
  src        = {eballiso2009, hh}
}