APA (7th ed.) Citation

Hornik, K., & Zeileis, A. (2012). Changes on CRAN. R Journal, 4(2), 80.

Chicago Style (17th ed.) Citation

Hornik, Kurt, and Achim Zeileis. "Changes on CRAN." R Journal 4, no. 2 (2012): 80.

MLA (9th ed.) Citation

Hornik, Kurt, and Achim Zeileis. "Changes on CRAN." R Journal, vol. 4, no. 2, 2012, p. 80.