APA (7th ed.) Citation

Hornik, K., & Zeileis, A. (2015). Changes on CRAN. R Journal, 7(1), 201.

Chicago Style (17th ed.) Citation

Hornik, Kurt, and Achim Zeileis. "Changes on CRAN." R Journal 7, no. 1 (2015): 201.

MLA (9th ed.) Citation

Hornik, Kurt, and Achim Zeileis. "Changes on CRAN." R Journal, vol. 7, no. 1, 2015, p. 201.