Grothendieck G (2017). sqldf: Manipulate R Data Frames Using SQL. Please cite the original sqldf package, not this fork.

Corresponding BibTeX entry:

  @Manual{,
    title = {sqldf: Manipulate R Data Frames Using SQL},
    author = {G. Grothendieck},
    year = {2017},
    note = {Please cite the original sqldf package, not this fork.},
  }