To cite childdevdata in publications use:

Stef van Buuren, Iris Eekhout, Marta Rubio Codina, Orazio Attanasio, Costas Meghir, Emla Fitzsimons, Sally Grantham-McGregor, Maria Caridad Araujo, Susan Walker, Susan Chang, Christine Powell, Ann Weber, Lia Fernald, Paul Verkerk, Linda Richter, Betsy Lozoff. Child Development Data. R package childdevdata, version 1.1.0.

Corresponding BibTeX entry:

  @Manual{childevdata-package,
    title = {Child Development Data},
    author = {Stef {van Buuren} and Iris Eekhout and Marta Rubio Codina
      and Orazio Attanasio and Costas Meghir and Emla Fitzsimons and
      Sally Grantham-McGregor and Maria Caridad Araujo and Susan Walker
      and Susan Chang and Christine Powell and Ann Weber and Lia
      Fernald and Paul Verkerk and Linda Richter and Betsy Lozoff},
    year = {2021},
    note = {R package version 1.1.0},
    url = {https://github.com/d-score/childdevdata},
  }