| APA | 289. (2012, February 11). In Acronym Geek. Retrieved 23:11, February 11, 2012, from http://www.acronymgeek.com/289 |
| MLA | "289." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/289>. |
| MHRA | '289', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/289> [accessed 11 February 2012] |
| Chicago | "289", http://www.acronymgeek.com/289 (accessed February 11, 2012). |
| CBE/CSE | 289 [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/289. |
| Bluebook | 289, http://www.acronymgeek.com/289 (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 289, http://www.acronymgeek.com/289 (optional description here) (as of Feb. 11, 2012, 23:11). |
| AMA | 289. Acronym Geek. February 11, 2012, 23:11. Available at: http://www.acronymgeek.com/289. Accessed February 11, 2012, 23:11. |