To cite package ‘googlenlp’ in publications use:

Weinstien B (2018). googlenlp: An Interface to Google's Cloud Natural Language API. R package version 0.2.0, https://github.com/brianweinstein/googlenlp.

Corresponding BibTeX entry:

  @Manual{,
    title = {googlenlp: An Interface to Google's Cloud Natural Language
      API},
    author = {Brian Weinstien},
    year = {2018},
    note = {R package version 0.2.0},
    url = {https://github.com/brianweinstein/googlenlp},
  }