APA (7th ed.) Citation

Hornik, K., & Zeileis, A. (2014). Changes on CRAN. R Journal, 6(2), 192.

Chicago Style (17th ed.) Citation

Hornik, Kurt, and Achim Zeileis. "Changes on CRAN." R Journal 6, no. 2 (2014): 192.

MLA (9th ed.) Citation

Hornik, Kurt, and Achim Zeileis. "Changes on CRAN." R Journal, vol. 6, no. 2, 2014, p. 192.