To cite randtoolbox in publications use:

Christophe D and Petr S (2014). randtoolbox: Generating and Testing Random Numbers. R package version 1.16.

Corresponding BibTeX entry:

  @Manual{,
    title = {randtoolbox: Generating and Testing Random Numbers},
    author = {Dutang Christophe and Savicky Petr},
    year = {2014},
    note = {R package version 1.16},
  }