| APA | NNNO. (2012, February 17). In Acronym Geek. Retrieved 06:53, February 17, 2012, from http://www.acronymgeek.com/NNNO |
| MLA | "NNNO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/NNNO>. |
| MHRA | 'NNNO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/NNNO> [accessed 17 February 2012] |
| Chicago | "NNNO", http://www.acronymgeek.com/NNNO (accessed February 17, 2012). |
| CBE/CSE | NNNO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/NNNO. |
| Bluebook | NNNO, http://www.acronymgeek.com/NNNO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNNO, http://www.acronymgeek.com/NNNO (optional description here) (as of Feb. 17, 2012, 06:53). |
| AMA | NNNO. Acronym Geek. February 17, 2012, 06:53. Available at: http://www.acronymgeek.com/NNNO. Accessed February 17, 2012, 06:53. |