| APA | CCOS. (2012, February 17). In Acronym Geek. Retrieved 04:51, February 17, 2012, from http://www.acronymgeek.com/CCOS |
| MLA | "CCOS." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/CCOS>. |
| MHRA | 'CCOS', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/CCOS> [accessed 17 February 2012] |
| Chicago | "CCOS", http://www.acronymgeek.com/CCOS (accessed February 17, 2012). |
| CBE/CSE | CCOS [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/CCOS. |
| Bluebook | CCOS, http://www.acronymgeek.com/CCOS (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CCOS, http://www.acronymgeek.com/CCOS (optional description here) (as of Feb. 17, 2012, 04:51). |
| AMA | CCOS. Acronym Geek. February 17, 2012, 04:51. Available at: http://www.acronymgeek.com/CCOS. Accessed February 17, 2012, 04:51. |