@misc{9721,
  author = {Mukarovsky, Hans Guenter},
  title  = {Abriss einer Lautlehre des Limba. Archiv für Völkerkunde 17/18. 161-178.; Pichl, Walter. no date. Noun Classes and Accordance in Limba. Dakar: Ms.; Armstrong, Robert G. no date. Wordlists of West African languages. Ms.; Thomas, Northcote Whitridge. 1916. Specimens of languages from Sierra Leone. London: Harrison & Sons.},
  year   = {1962/1963}
}