@unpublished{Cheung-1983,
  author     = {Cheung, Sik-Lee},
  school     = {University of Alberta},
  title      = {Cantonese},
  type       = {manuscript},
  year       = {1983},
  iso_code   = {yue},
  olac_field = {syntax; morphology; typology; general_linguistics},
  wals_code  = {cnt}
}