@book{Bielec-1998,
  address    = {London},
  author     = {Bielec, Dana},
  publisher  = {Routledge},
  title      = {Polish: An Essential Grammar},
  year       = {1998},
  iso_code   = {pol},
  olac_field = {morphology; syntax; general_linguistics; semantics; typology},
  wals_code  = {pol}
}