| APA | OCCL. (2012, February 14). In Acronym Geek. Retrieved 08:40, February 14, 2012, from http://www.acronymgeek.com/OCCL |
| MLA | "OCCL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OCCL>. |
| MHRA | 'OCCL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OCCL> [accessed 14 February 2012] |
| Chicago | "OCCL", http://www.acronymgeek.com/OCCL (accessed February 14, 2012). |
| CBE/CSE | OCCL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OCCL. |
| Bluebook | OCCL, http://www.acronymgeek.com/OCCL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OCCL, http://www.acronymgeek.com/OCCL (optional description here) (as of Feb. 14, 2012, 08:40). |
| AMA | OCCL. Acronym Geek. February 14, 2012, 08:40. Available at: http://www.acronymgeek.com/OCCL. Accessed February 14, 2012, 08:40. |