@book{Haspelmath-1997,
  address    = {Oxford},
  author     = {Haspelmath, Martin},
  publisher  = {Oxford University Press},
  title      = {Indefinite Pronouns},
  year       = {1997},
  iso_code   = {oss; gld; fin; lav; fra; kaz; hin; ell; rus; ron; swh; por; hrv; sah; ita; pol; mlt; hun; cat; bul; isl; lez; nld; srp; tur; pes; bos; gle; hau; kan; lit; swe},
  olac_field = {syntax; typology; semantics; general_linguistics},
  wals_code  = {fin; knd; tur; rus; ita; swa; lat; lit; iri; prs; scr; rom; ykt; kaz; por; hau; grk; hin; ice; ctl; dut; oss; pol; lez; hun; swe; mlt; fre; bul; nai}
}