To cite package ‘NPBBBdesigns’ in publications use:

  Vinayaka, Parsad R, Mandal B, Vinaykumar L, Krishnappa G (2026).
  _NPBBBdesigns: Construction and a-Efficiency of Nested Partially
  Balanced Bipartite Block Designs_. R package version 1.0.0,
  <https://CRAN.R-project.org/package=NPBBBdesigns>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {NPBBBdesigns: Construction and a-Efficiency of Nested Partially Balanced
Bipartite Block Designs},
    author = {{Vinayaka} and Rajender Parsad and B.N. Mandal and L.N. Vinaykumar and Gopalareddy Krishnappa},
    year = {2026},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=NPBBBdesigns},
  }