To cite strataG in publications use:

  Archer, F. I., Adams, P. E. and Schneiders, B. B. (2016) strataG: An
  R package for manipulating, summarizing and analysing population
  genetic data. Mol Ecol Resour. doi:10.1111/1755-0998.12559

A BibTeX entry for LaTeX users is

  @Article{,
    title = {strataG: An R package for manipulating, summarizing and analysing population genetic data},
    year = {2016},
    author = {Frederick Archer and Paula Adams and Brita Schneiders},
    journal = {Molecular Ecology Resources},
    doi = {10.1111/1755-0998.12559},
    url = {https://github.com/ericarcher/strataG},
  }