To cite randtoolbox in publications use:

C. Dutang (2009), randtoolbox: Generating and Testing Random Numbers.

Corresponding BibTeX entry:

  @Manual{,
    title = {randtoolbox: Generating and Testing Random Numbers},
    author = {Christophe Dutang},
    year = {2009},
    note = {R package version 1.07},
  }