To cite package rDNA in publications use:

Leifeld, Philip (2016). rDNA. A Package to Control Discourse Network Analyzer from R. University of Glasgow, School of Social and Political Sciences. R package version 1.31.

Corresponding BibTeX entry:

  @Manual{,
    title = {{rDNA. A Package to Control Discourse Network Analyzer
      from R}},
    author = {Philip Leifeld},
    year = {2016},
    note = {R package version 1.31},
    organization = {University of Glasgow, School of Social and
      Political Sciences},
    address = {Glasgow},
    url = {http://www.philipleifeld.com},
  }