| APA | 9I. (2012, February 10). In Acronym Geek. Retrieved 08:20, February 10, 2012, from http://www.acronymgeek.com/9I |
| MLA | "9I." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/9I>. |
| MHRA | '9I', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/9I> [accessed 10 February 2012] |
| Chicago | "9I", http://www.acronymgeek.com/9I (accessed February 10, 2012). |
| CBE/CSE | 9I [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/9I. |
| Bluebook | 9I, http://www.acronymgeek.com/9I (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 9I, http://www.acronymgeek.com/9I (optional description here) (as of Feb. 10, 2012, 08:20). |
| AMA | 9I. Acronym Geek. February 10, 2012, 08:20. Available at: http://www.acronymgeek.com/9I. Accessed February 10, 2012, 08:20. |