@book{Layton-2000,
  address    = {Wiesbaden},
  author     = {Layton, Bentley},
  publisher  = {Harrassowitz Verlag},
  title      = {A Coptic Grammar},
  year       = {2000},
  iso_code   = {cop},
  olac_field = {general_linguistics; typology; syntax; semantics},
  wals_code  = {cop}
}