To cite package ‘pdftables’ in publications use:

Persson E (2016). pdftables: Programmatic Conversion of PDF Tables. R package version 0.1, https://github.com/expersso/pdftables.

Corresponding BibTeX entry:

  @Manual{,
    title = {pdftables: Programmatic Conversion of PDF Tables},
    author = {Eric Persson},
    year = {2016},
    note = {R package version 0.1},
    url = {https://github.com/expersso/pdftables},
  }