APA (7th ed.) Citation

Zeileis, A., Fisher, J. C., Hornik, K., Ihaka, R., McWhite, C. D., Murrell, P., . . . Wilke, C. O. (2019). colorspace: A Toolbox for Manipulating and Assessing Colors and Palettes.

Chicago Style (17th ed.) Citation

Zeileis, Achim, Jason C. Fisher, Kurt Hornik, Ross Ihaka, Claire D. McWhite, Paul Murrell, Reto Stauffer, and Claus O. Wilke. Colorspace: A Toolbox for Manipulating and Assessing Colors and Palettes. 2019.

MLA (9th ed.) Citation

Zeileis, Achim, et al. Colorspace: A Toolbox for Manipulating and Assessing Colors and Palettes. 2019.