| APA | OCU. (2012, February 14). In Acronym Geek. Retrieved 11:08, February 14, 2012, from http://www.acronymgeek.com/OCU |
| MLA | "OCU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OCU>. |
| MHRA | 'OCU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OCU> [accessed 14 February 2012] |
| Chicago | "OCU", http://www.acronymgeek.com/OCU (accessed February 14, 2012). |
| CBE/CSE | OCU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OCU. |
| Bluebook | OCU, http://www.acronymgeek.com/OCU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OCU, http://www.acronymgeek.com/OCU (optional description here) (as of Feb. 14, 2012, 11:08). |
| AMA | OCU. Acronym Geek. February 14, 2012, 11:08. Available at: http://www.acronymgeek.com/OCU. Accessed February 14, 2012, 11:08. |