To cite rdhs in publications use:

  Watson OJ, FitzJohn R and Eaton JW. rdhs: an R package to interact
  with The Demographic and Health Surveys (DHS) Program datasets
  Wellcome Open Research 2019, 4:103.
  (https://doi.org/10.12688/wellcomeopenres.15311.1)

A BibTeX entry for LaTeX users is

  @Article{,
    title = {rdhs: an R package to interact with The Demographic and Health Surveys (DHS) Program datasets},
    author = {Oliver J Watson and Rich FitzJohn and Jeffrey W Eaton},
    journal = {Wellcome Open Research},
    year = {2019},
    volume = {4},
    pages = {103},
    url = {https://wellcomeopenresearch.org/articles/4-103/v1},
    doi = {10.12688/wellcomeopenres.15311.1},
  }