To cite the 'manymome' package in publications use:

Cheung SF, Cheung S (2023). manymome: An R package for computing the indirect effects, conditional effects, and conditional indirect effects. https://github.com/sfcheung/manymome.

Corresponding BibTeX entry:

  @Manual{,
    title = {manymome: An R package for computing the indirect effects,
      conditional effects, and conditional indirect effects},
    url = {https://github.com/sfcheung/manymome},
    author = {S. F. Cheung and S.-H. Cheung},
    year = {2023},
  }