| APA | NCOI. (2012, February 16). In Acronym Geek. Retrieved 05:13, February 16, 2012, from http://www.acronymgeek.com/NCOI |
| MLA | "NCOI." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/NCOI>. |
| MHRA | 'NCOI', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/NCOI> [accessed 16 February 2012] |
| Chicago | "NCOI", http://www.acronymgeek.com/NCOI (accessed February 16, 2012). |
| CBE/CSE | NCOI [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/NCOI. |
| Bluebook | NCOI, http://www.acronymgeek.com/NCOI (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NCOI, http://www.acronymgeek.com/NCOI (optional description here) (as of Feb. 16, 2012, 05:13). |
| AMA | NCOI. Acronym Geek. February 16, 2012, 05:13. Available at: http://www.acronymgeek.com/NCOI. Accessed February 16, 2012, 05:13. |