To cite package ecodist in publications use:

Goslee, S.C. and Urban, D.L. 2007. The ecodist package for dissimilarity-based analysis of ecological data. Journal of Statistical Software 22(7):1-19.

Corresponding BibTeX entry:

  @Article{,
    title = {The ecodist package for dissimilarity-based analysis of
      ecological data},
    author = {Sarah C. Goslee and Dean L. Urban},
    journal = {Journal of Statistical Software},
    year = {2007},
    volume = {22},
    issue = {7},
    pages = {1-19},
  }