| APA | CNNO. (2012, February 17). In Acronym Geek. Retrieved 07:46, February 17, 2012, from http://www.acronymgeek.com/CNNO |
| MLA | "CNNO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/CNNO>. |
| MHRA | 'CNNO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/CNNO> [accessed 17 February 2012] |
| Chicago | "CNNO", http://www.acronymgeek.com/CNNO (accessed February 17, 2012). |
| CBE/CSE | CNNO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/CNNO. |
| Bluebook | CNNO, http://www.acronymgeek.com/CNNO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CNNO, http://www.acronymgeek.com/CNNO (optional description here) (as of Feb. 17, 2012, 07:46). |
| AMA | CNNO. Acronym Geek. February 17, 2012, 07:46. Available at: http://www.acronymgeek.com/CNNO. Accessed February 17, 2012, 07:46. |