@misc{500229,
  address      = {Dallas},
  author       = {ISO 639-3 Registration Authority},
  howpublished = {https://iso639-3.sil.org/request/2007-121},
  number       = {2007-121},
  publisher    = {SIL International},
  title        = {Change Request Number 2007-121: adopted split [ypl], adopted create [ypa], adopted create [ypg], adopted create [ypo] (2008-01-14)},
  url          = {https://iso639-3.sil.org/sites/iso639-3/files/change_requests/2007/2007-121.pdf},
  year         = {2007},
  hhtype       = {overview},
  lgcode       = {Phala [ypa], Phola [ypg], Pula Yi [ypl], Alo Phola [ypo]},
  macro_area   = {Eurasia},
  src          = {iso6393}
}