To cite package ‘sand’ in publications use:

Kolaczyk E, Csárdi G (2020). sand: Statistical Analysis of Network Data with R, 2nd Edition. R package version 2.0.0, https://github.com/kolaczyk/sand.

Corresponding BibTeX entry:

  @Manual{,
    title = {sand: Statistical Analysis of Network Data with R, 2nd
      Edition},
    author = {Eric Kolaczyk and Gábor Csárdi},
    year = {2020},
    note = {R package version 2.0.0},
    url = {https://github.com/kolaczyk/sand},
  }