@book{Ashiwaju-1968,
  address    = {Leipzig},
  author     = {Ashiwaju, Michael},
  publisher  = {Verlag Enzyklopädie},
  title      = {Lehrbuch der Yoruba-Sprache},
  year       = {1968},
  iso_code   = {yor},
  olac_field = {typology; syntax; general_linguistics; semantics},
  wals_code  = {yor}
}