| APA | COSN. (2012, February 15). In Acronym Geek. Retrieved 19:10, February 15, 2012, from http://www.acronymgeek.com/COSN |
| MLA | "COSN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/COSN>. |
| MHRA | 'COSN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/COSN> [accessed 15 February 2012] |
| Chicago | "COSN", http://www.acronymgeek.com/COSN (accessed February 15, 2012). |
| CBE/CSE | COSN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/COSN. |
| Bluebook | COSN, http://www.acronymgeek.com/COSN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, COSN, http://www.acronymgeek.com/COSN (optional description here) (as of Feb. 15, 2012, 19:10). |
| AMA | COSN. Acronym Geek. February 15, 2012, 19:10. Available at: http://www.acronymgeek.com/COSN. Accessed February 15, 2012, 19:10. |