To cite package ‘pedprobr’ in publications use:

  Vigeland MD (2021). _Pedigree Analysis in R_. Academic Press. ISBN
  978-0128244302.

A BibTeX entry for LaTeX users is

  @Book{,
    title = {Pedigree Analysis in {R}},
    author = {Magnus Dehli Vigeland},
    year = {2021},
    publisher = {Academic Press},
    isbn = {978-0128244302},
  }