To cite package ‘sqldf’ in publications use:

Grothendieck G (2026). sqldf: Manipulate R Data Frames Using SQL. R package version 0.4-12, https://github.com/ggrothendieck/sqldf.

Corresponding BibTeX entry:

  @Manual{,
    title = {sqldf: Manipulate R Data Frames Using SQL},
    author = {G. Grothendieck},
    year = {2026},
    note = {R package version 0.4-12},
    url = {https://github.com/ggrothendieck/sqldf},
  }