APA (7th ed.) Citation

Craeynest, D. (2012). Conference Calendar. Ada User Journal, 33(4), 259.

Chicago Style (17th ed.) Citation

Craeynest, Dirk. "Conference Calendar." Ada User Journal 33, no. 4 (2012): 259.

MLA (9th ed.) Citation

Craeynest, Dirk. "Conference Calendar." Ada User Journal, vol. 33, no. 4, 2012, p. 259.