@incollection{64444,
  address    = {Varna (Bulgaria)},
  author     = {Derso, Tekle Haimanot},
  booktitle  = {The deaf people in modern society: proceedings of the 8th World Congress of the World Federation of the Deaf, Varna, June 20-27, 1979},
  pages      = {350-353},
  publisher  = {Varna, Bulgaria},
  title      = {The development of gestural communication in Ethiopia},
  year       = {1981},
  hhtype     = {overview},
  inlg       = {English [eng]},
  keywords   = {;nea;eth;lng;scl;y.900;},
  lgcode     = {Ethiopian Sign Language [eth]},
  macro_area = {Africa},
  src        = {eballiso2009, hh}
}