@book{Ittmann-1971,
  address    = {Berlin},
  author     = {Ittmann, Johannes},
  publisher  = {Akademie-Verlag},
  title      = {Sprichwörter der Kundu (Kamerun)},
  year       = {1971},
  iso_code   = {bdu},
  olac_field = {general_linguistics; syntax; typology},
  wals_code  = {bkn}
}