To cite package ‘duckdb’ in publications use:

  Mühleisen H, Raasveldt M (2024). _duckdb: DBI Package for the DuckDB
  Database Management System_. R package version 1.1.1,
  <https://CRAN.R-project.org/package=duckdb>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {duckdb: DBI Package for the DuckDB Database Management System},
    author = {Hannes Mühleisen and Mark Raasveldt},
    year = {2024},
    note = {R package version 1.1.1},
    url = {https://CRAN.R-project.org/package=duckdb},
  }