If you wish to cite cancensus:

von Bergmann, J., Dmitry Shkolnik, and Aaron Jacobs (2018). cancensus: Canadian Census Data and Geography from the 'CensusMapper' API. v0.1.6.

Corresponding BibTeX entry:

  @Manual{,
    author = {Jens {von Bergmann} and Dmitry Shkolnik and Aaron
      Jacobs},
    title = {cancensus: Canadian Census Data and Geography from the
      'CensusMapper' API},
    year = {2018},
    note = {R package version 0.1.7},
    url = {https://mountainmath.github.io/cancensus/},
  }