| APA | CIOC. (2012, February 11). In Acronym Geek. Retrieved 21:00, February 11, 2012, from http://www.acronymgeek.com/CIOC |
| MLA | "CIOC." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/CIOC>. |
| MHRA | 'CIOC', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/CIOC> [accessed 11 February 2012] |
| Chicago | "CIOC", http://www.acronymgeek.com/CIOC (accessed February 11, 2012). |
| CBE/CSE | CIOC [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/CIOC. |
| Bluebook | CIOC, http://www.acronymgeek.com/CIOC (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CIOC, http://www.acronymgeek.com/CIOC (optional description here) (as of Feb. 11, 2012, 21:00). |
| AMA | CIOC. Acronym Geek. February 11, 2012, 21:00. Available at: http://www.acronymgeek.com/CIOC. Accessed February 11, 2012, 21:00. |