To cite package ‘isoraster’ in publications use:

  Sumner M (2024). _isoraster: Create Contour Lines and Contour
  Polygons from a Raster_. R package version 0.0.1,
  <https://github.com/hypertidy/isoraster>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {isoraster: Create Contour Lines and Contour Polygons from a Raster},
    author = {Michael Sumner},
    year = {2024},
    note = {R package version 0.0.1},
    url = {https://github.com/hypertidy/isoraster},
  }