| APA | CIOFO. (2012, February 12). In Acronym Geek. Retrieved 15:21, February 12, 2012, from http://www.acronymgeek.com/CIOFO |
| MLA | "CIOFO." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/CIOFO>. |
| MHRA | 'CIOFO', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/CIOFO> [accessed 12 February 2012] |
| Chicago | "CIOFO", http://www.acronymgeek.com/CIOFO (accessed February 12, 2012). |
| CBE/CSE | CIOFO [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/CIOFO. |
| Bluebook | CIOFO, http://www.acronymgeek.com/CIOFO (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CIOFO, http://www.acronymgeek.com/CIOFO (optional description here) (as of Feb. 12, 2012, 15:21). |
| AMA | CIOFO. Acronym Geek. February 12, 2012, 15:21. Available at: http://www.acronymgeek.com/CIOFO. Accessed February 12, 2012, 15:21. |