To cite package ‘rgpdd’ in publications use:

Boettiger C, Harte T, Chamberlain S, Ram K (2020). rgpdd: R Interface to the Global Population Dynamics Database. R package version 0.1, https://github.com/ropensci/rgpdd.

Corresponding BibTeX entry:

  @Manual{,
    title = {rgpdd: R Interface to the Global Population Dynamics
      Database},
    author = {Carl Boettiger and Ted Harte and Scott Chamberlain and
      Karthik Ram},
    year = {2020},
    note = {R package version 0.1},
    url = {https://github.com/ropensci/rgpdd},
  }