To cite package ‘PEcAn.MA’ in publications use:

  Dietze M, LeBauer D, Feng X, Wang D, Davidson C, Kooper R, Serbin S,
  Singh S (2021). _PEcAn.MA: PEcAn Functions Used for Meta-Analysis_. R
  package version 1.7.2, <https://github.com/pecanproject/pecan>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PEcAn.MA: PEcAn Functions Used for Meta-Analysis},
    author = {Mike Dietze and David LeBauer and Xiaohui Feng and Dan Wang and Carl Davidson and Rob Kooper and Shawn Serbin and Shashank Singh},
    year = {2021},
    note = {R package version 1.7.2},
    url = {https://github.com/pecanproject/pecan},
  }