| APA | 9. (2012, February 11). In Acronym Geek. Retrieved 10:21, February 11, 2012, from http://www.acronymgeek.com/9 |
| MLA | "9." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/9>. |
| MHRA | '9', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/9> [accessed 11 February 2012] |
| Chicago | "9", http://www.acronymgeek.com/9 (accessed February 11, 2012). |
| CBE/CSE | 9 [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/9. |
| Bluebook | 9, http://www.acronymgeek.com/9 (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 9, http://www.acronymgeek.com/9 (optional description here) (as of Feb. 11, 2012, 10:21). |
| AMA | 9. Acronym Geek. February 11, 2012, 10:21. Available at: http://www.acronymgeek.com/9. Accessed February 11, 2012, 10:21. |