| APA | OCN. (2012, February 9). In Acronym Geek. Retrieved 20:25, February 9, 2012, from http://www.acronymgeek.com/OCN |
| MLA | "OCN." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/OCN>. |
| MHRA | 'OCN', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/OCN> [accessed 9 February 2012] |
| Chicago | "OCN", http://www.acronymgeek.com/OCN (accessed February 9, 2012). |
| CBE/CSE | OCN [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/OCN. |
| Bluebook | OCN, http://www.acronymgeek.com/OCN (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OCN, http://www.acronymgeek.com/OCN (optional description here) (as of Feb. 9, 2012, 20:25). |
| AMA | OCN. Acronym Geek. February 9, 2012, 20:25. Available at: http://www.acronymgeek.com/OCN. Accessed February 9, 2012, 20:25. |