@book{9789241548960-eng,
  author    = {World Health Organization},
  title     = {{WHO handbook for guideline development}},
  year      = {2014},
  publisher = {World Health Organization},
  url       = {https://iris.who.int/handle/10665/145714},
  isbn      = {9789241548960},
}

@book{wpr-rdo-2020-003-eng,
  author    = {World Health Organization. Regional Office for the Western Pacific},
  title     = {{Publication and information products style guide}},
  year      = {2020},
  publisher = {WHO Regional Office for the Western Pacific},
  url       = {http://iris.wpro.who.int/handle/10665.1/14518},
}

@book{who-pub-tps-931,
  author    = {World Health Organization. Technical Publications Unit},
  title     = {{WHO editorial style manual}},
  year      = {1993},
  publisher = {World Health Organization},
  url       = {https://iris.who.int/handle/10665/36842},
  isbn      = {8872660203 (ita)},
}