Simons and Fennig (eds.) 2019

Simons, Gary F. and Fennig, Charles D. (eds.) 2019. Ethnologue: Languages of the World. Dallas, Texas: SIL International.

@misc{ethnologueonline,
  address      = {Dallas, Texas},
  edition      = {22},
  editor       = {Simons, Gary F. and Fennig, Charles D.},
  howpublished = {\textsc{url:} \url{http://www.ethnologue.com}},
  publisher    = {SIL International},
  title        = {Ethnologue: Languages of the World},
  year         = {2019}
}