@book{Smyth-2002,
  address    = {London},
  author     = {Smyth, David},
  publisher  = {Routledge},
  title      = {Thai: an essential grammar},
  year       = {2002},
  iso_code   = {tha},
  olac_field = {general_linguistics; typology; syntax},
  wals_code  = {tha}
}