To cite package 'MLID' in publications use:

Harris R (2017). MLID: Tools and functions to fit a multilevel index of dissimilarity.

Corresponding BibTeX entry:

  @Manual{,
    title = {MLID: Tools and functions to fit a multilevel index of
      dissimilarity},
    author = {Richard Harris},
    year = {2017},
    institution = {School of Geographical Sciences, University of
      Bristol},
  }