| APA | OCC. (2012, February 13). In Acronym Geek. Retrieved 23:34, February 13, 2012, from http://www.acronymgeek.com/OCC |
| MLA | "OCC." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/OCC>. |
| MHRA | 'OCC', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/OCC> [accessed 13 February 2012] |
| Chicago | "OCC", http://www.acronymgeek.com/OCC (accessed February 13, 2012). |
| CBE/CSE | OCC [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/OCC. |
| Bluebook | OCC, http://www.acronymgeek.com/OCC (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OCC, http://www.acronymgeek.com/OCC (optional description here) (as of Feb. 13, 2012, 23:34). |
| AMA | OCC. Acronym Geek. February 13, 2012, 23:34. Available at: http://www.acronymgeek.com/OCC. Accessed February 13, 2012, 23:34. |