@book{Yates-and-Tryon-1970,
  address    = {Washington},
  author     = {Yates, Warren G. and Tryon, Absorn},
  publisher  = {Department of State, Foreign Service Institute},
  title      = {Thai: Basic Course. Volume 1 and 2},
  year       = {1970},
  iso_code   = {tha},
  olac_field = {syntax; general_linguistics; typology; semantics},
  wals_code  = {tha}
}