To cite package ‘Lahman’ in publications use:

  Friendly M, Dalzell C, Monkman M, Murphy D (2024). _Lahman: Sean
  'Lahman' Baseball Database_. R package version 12.0-0, ,
  <https://github.com/cdalzell/lahman>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Lahman: Sean 'Lahman' Baseball Database},
    author = {Michael Friendly and Chris Dalzell and Martin Monkman and Dennis Murphy},
    year = {2024},
    note = {R package version 12.0-0, 
},
    url = {https://github.com/cdalzell/lahman},
  }