| APA | CEFO. (2012, February 15). In Acronym Geek. Retrieved 05:44, February 15, 2012, from http://www.acronymgeek.com/CEFO |
| MLA | "CEFO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CEFO>. |
| MHRA | 'CEFO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CEFO> [accessed 15 February 2012] |
| Chicago | "CEFO", http://www.acronymgeek.com/CEFO (accessed February 15, 2012). |
| CBE/CSE | CEFO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CEFO. |
| Bluebook | CEFO, http://www.acronymgeek.com/CEFO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CEFO, http://www.acronymgeek.com/CEFO (optional description here) (as of Feb. 15, 2012, 05:44). |
| AMA | CEFO. Acronym Geek. February 15, 2012, 05:44. Available at: http://www.acronymgeek.com/CEFO. Accessed February 15, 2012, 05:44. |