To cite pacman in publications, please use:

Rinker TW, Kurkiewicz D (2018). pacman: Package Management for R. version 0.5.0, http://github.com/trinker/pacman.

Corresponding BibTeX entry:

  @Manual{,
    title = {{pacman}: {P}ackage Management for {R}},
    author = {Tyler W. Rinker and Dason Kurkiewicz},
    address = {Buffalo, New York},
    note = {version 0.5.0},
    year = {2018},
    url = {http://github.com/trinker/pacman},
  }