| APA | OCEF. (2012, February 16). In Acronym Geek. Retrieved 13:37, February 16, 2012, from http://www.acronymgeek.com/OCEF |
| MLA | "OCEF." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OCEF>. |
| MHRA | 'OCEF', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OCEF> [accessed 16 February 2012] |
| Chicago | "OCEF", http://www.acronymgeek.com/OCEF (accessed February 16, 2012). |
| CBE/CSE | OCEF [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OCEF. |
| Bluebook | OCEF, http://www.acronymgeek.com/OCEF (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OCEF, http://www.acronymgeek.com/OCEF (optional description here) (as of Feb. 16, 2012, 13:37). |
| AMA | OCEF. Acronym Geek. February 16, 2012, 13:37. Available at: http://www.acronymgeek.com/OCEF. Accessed February 16, 2012, 13:37. |