| APA | OECU. (2012, February 15). In Acronym Geek. Retrieved 05:04, February 15, 2012, from http://www.acronymgeek.com/OECU |
| MLA | "OECU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OECU>. |
| MHRA | 'OECU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OECU> [accessed 15 February 2012] |
| Chicago | "OECU", http://www.acronymgeek.com/OECU (accessed February 15, 2012). |
| CBE/CSE | OECU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OECU. |
| Bluebook | OECU, http://www.acronymgeek.com/OECU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OECU, http://www.acronymgeek.com/OECU (optional description here) (as of Feb. 15, 2012, 05:04). |
| AMA | OECU. Acronym Geek. February 15, 2012, 05:04. Available at: http://www.acronymgeek.com/OECU. Accessed February 15, 2012, 05:04. |