To cite package ‘readbitmap’ in publications use:

Jefferis G (2018). readbitmap: Simple Unified Interface to Read Bitmap Images (BMP,JPEG,PNG,TIFF). R package version 0.1.5, https://github.com/jefferis/readbitmap.

Corresponding BibTeX entry:

  @Manual{,
    title = {readbitmap: Simple Unified Interface to Read Bitmap Images
      (BMP,JPEG,PNG,TIFF)},
    author = {Gregory Jefferis},
    year = {2018},
    note = {R package version 0.1.5},
    url = {https://github.com/jefferis/readbitmap},
  }