@book{Rapp-1966,
  address    = {Leipzig},
  author     = {Rapp, Eugen Ludwig},
  publisher  = {Enzyklopädie},
  title      = {Die Gurenne-Sprache in Nordghana},
  year       = {1966},
  iso_code   = {gur},
  olac_field = {semantics; general_linguistics; syntax; typology},
  wals_code  = {grn}
}