To cite package ‘outreg’ in publications use:

Mori K (2017). outreg: Regression Table for Publication. R package version 0.2.2, https://github.com/kota7/outreg.

Corresponding BibTeX entry:

  @Manual{,
    title = {outreg: Regression Table for Publication},
    author = {Kota Mori},
    year = {2017},
    note = {R package version 0.2.2},
    url = {https://github.com/kota7/outreg},
  }