To cite package ‘GWASTools’ in publications use:

  Gogarten SM, Bhangale T, Conomos MP, Laurie CA, McHugh CP, Painter I,
  Zheng X, Crosslin DR, Levine D, Lumley T, Nelson SC, Rice K, Shen J,
  Swarnkar R, Weir BS, Laurie CC (2012). “GWASTools: an R/Bioconductor
  package for quality control and analysis of genome-wide association
  studies.” _Bioinformatics_, *28*(24), 3329-3331.
  doi:10.1093/bioinformatics/bts610
  <https://doi.org/10.1093/bioinformatics/bts610>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {{GWASTools}: an {R/Bioconductor} package for quality control and analysis of genome-wide association studies},
    author = {Stephanie M. Gogarten and Tushar Bhangale and Matthew P. Conomos and Cecelia A. Laurie and Caitlin P. McHugh and Ian Painter and Xiuwen Zheng and David R. Crosslin and David Levine and Thomas Lumley and Sarah C. Nelson and Kenneth Rice and Jess Shen and Rohit Swarnkar and Bruce S. Weir and Cathy C. Laurie},
    year = {2012},
    journal = {Bioinformatics},
    volume = {28},
    number = {24},
    pages = {3329-3331},
    doi = {10.1093/bioinformatics/bts610},
  }