| APA | C OF O. (2012, February 10). In Acronym Geek. Retrieved 13:22, February 10, 2012, from http://www.acronymgeek.com/C OF O |
| MLA | "C OF O." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/C OF O>. |
| MHRA | 'C OF O', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/C OF O> [accessed 10 February 2012] |
| Chicago | "C OF O", http://www.acronymgeek.com/C OF O (accessed February 10, 2012). |
| CBE/CSE | C OF O [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/C OF O. |
| Bluebook | C OF O, http://www.acronymgeek.com/C OF O (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, C OF O, http://www.acronymgeek.com/C OF O (optional description here) (as of Feb. 10, 2012, 13:22). |
| AMA | C OF O. Acronym Geek. February 10, 2012, 13:22. Available at: http://www.acronymgeek.com/C OF O. Accessed February 10, 2012, 13:22. |