To cite package ‘trigpoints’ in publications use:

Jones P (2018). trigpoints: Data Set of Trig Points in Great Britain in British National Grid Coordinates. R package version 1.0.0, https://github.com/philmikejones/trigpoints.

Corresponding BibTeX entry:

  @Manual{,
    title = {trigpoints: Data Set of Trig Points in Great Britain in
      British National Grid Coordinates},
    author = {Phil Mike Jones},
    year = {2018},
    note = {R package version 1.0.0},
    url = {https://github.com/philmikejones/trigpoints},
  }