| APA | NI. (2012, February 14). In Acronym Geek. Retrieved 06:57, February 14, 2012, from http://www.acronymgeek.com/NI |
| MLA | "NI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/NI>. |
| MHRA | 'NI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/NI> [accessed 14 February 2012] |
| Chicago | "NI", http://www.acronymgeek.com/NI (accessed February 14, 2012). |
| CBE/CSE | NI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/NI. |
| Bluebook | NI, http://www.acronymgeek.com/NI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NI, http://www.acronymgeek.com/NI (optional description here) (as of Feb. 14, 2012, 06:57). |
| AMA | NI. Acronym Geek. February 14, 2012, 06:57. Available at: http://www.acronymgeek.com/NI. Accessed February 14, 2012, 06:57. |