| APA | CNOS. (2012, February 9). In Acronym Geek. Retrieved 10:25, February 9, 2012, from http://www.acronymgeek.com/CNOS |
| MLA | "CNOS." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/CNOS>. |
| MHRA | 'CNOS', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/CNOS> [accessed 9 February 2012] |
| Chicago | "CNOS", http://www.acronymgeek.com/CNOS (accessed February 9, 2012). |
| CBE/CSE | CNOS [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/CNOS. |
| Bluebook | CNOS, http://www.acronymgeek.com/CNOS (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CNOS, http://www.acronymgeek.com/CNOS (optional description here) (as of Feb. 9, 2012, 10:25). |
| AMA | CNOS. Acronym Geek. February 9, 2012, 10:25. Available at: http://www.acronymgeek.com/CNOS. Accessed February 9, 2012, 10:25. |