To cite package ‘squire’ in publications use:

  Watson O, Walker P, Whittaker C, Winskill P, Charles G (2022).
  _squire: SEIR transmission model of COVID-19_. R package version
  0.7.1, <https://github.com/mrc-ide/squire>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {squire: SEIR transmission model of COVID-19},
    author = {OJ Watson and Patrick Walker and Charlie Whittaker and Peter Winskill and Giovanni Charles},
    year = {2022},
    note = {R package version 0.7.1},
    url = {https://github.com/mrc-ide/squire},
  }