APA (7th ed.) Citation

Venables, W. N., & Smith, D. M. (2009). An introduction to R: A programming environment for data analysis and graphics (2. ed., for Vers. 2.9.0 (rel. April 2009).). Network Theory.

Chicago Style (17th ed.) Citation

Venables, William N., and D. M. Smith. An Introduction to R: A Programming Environment for Data Analysis and Graphics. 2. ed., for Vers. 2.9.0 (rel. April 2009). Bristol: Network Theory, 2009.

MLA (9th ed.) Citation

Venables, William N., and D. M. Smith. An Introduction to R: A Programming Environment for Data Analysis and Graphics. 2. ed., for Vers. 2.9.0 (rel. April 2009). Network Theory, 2009.