To cite 'indicspecies' package in publications use:

De Caceres M, Legendre P (2009). Associations between species and groups of sites: indices and statistical inference. http://sites.google.com/site/miqueldecaceres/.

Thank you for using 'indicspecies'

Corresponding BibTeX entry:

  @Manual{,
    title = {Associations between species and groups of sites: indices
      and statistical inference},
    author = {Miquel {De Caceres} and Pierre Legendre},
    journal = {Ecology},
    year = {2009},
    url = {http://sites.google.com/site/miqueldecaceres/},
  }