| APA | NOI. (2012, February 8). In Acronym Geek. Retrieved 20:00, February 8, 2012, from http://www.acronymgeek.com/NOI |
| MLA | "NOI." Acronym Geek. (2012). Acronym Geek. 8 Feb 2012 <http://www.acronymgeek.com/NOI>. |
| MHRA | 'NOI', Acronym Geek, 8 February 2012, <http://www.acronymgeek.com/NOI> [accessed 8 February 2012] |
| Chicago | "NOI", http://www.acronymgeek.com/NOI (accessed February 8, 2012). |
| CBE/CSE | NOI [Internet]. Acronym Geek; 2012 Feb 8 [cited 2012 Feb 8]. Available from: http://www.acronymgeek.com/NOI. |
| Bluebook | NOI, http://www.acronymgeek.com/NOI (last visited February 8, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NOI, http://www.acronymgeek.com/NOI (optional description here) (as of Feb. 8, 2012, 20:00). |
| AMA | NOI. Acronym Geek. February 8, 2012, 20:00. Available at: http://www.acronymgeek.com/NOI. Accessed February 8, 2012, 20:00. |