@incollection{90963,
  address          = {Jos, Kano & Huntington Beach CA},
  author           = {Perrin, Mona J.},
  booktitle        = {Ten Nigerian tone systems},
  editor           = {Bendor-Samuel, J. T.},
  pages            = {4},
  publisher        = {Institute of Linguistics; Centre for the Study of Nigerian Languages (CSNL), Bayero University College; Summer Institute of Linguistics (SIL)., pp. 93-108},
  series           = {Studies in Nigerian languages},
  title            = {Mambila},
  volume           = {4; Language data (on microfiche): African series, #4},
  year             = {1974},
  country          = {Nigeria [NG]},
  keywords         = {;waf;caf;cmr;lng;phn;t.111;},
  lgcode           = {Nigeria Mambila [mzk]},
  macro_area       = {Africa},
  sil_id           = {11912},
  src              = {eballiso2009, sil16, weball},
  subject          = {Tone [TON]},
  subject_headings = {waf, caf, cmr, lng, phn, t.111}
}