| APA | OZNK. (2012, February 15). In Acronym Geek. Retrieved 10:27, February 15, 2012, from http://www.acronymgeek.com/OZNK |
| MLA | "OZNK." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OZNK>. |
| MHRA | 'OZNK', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OZNK> [accessed 15 February 2012] |
| Chicago | "OZNK", http://www.acronymgeek.com/OZNK (accessed February 15, 2012). |
| CBE/CSE | OZNK [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OZNK. |
| Bluebook | OZNK, http://www.acronymgeek.com/OZNK (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OZNK, http://www.acronymgeek.com/OZNK (optional description here) (as of Feb. 15, 2012, 10:27). |
| AMA | OZNK. Acronym Geek. February 15, 2012, 10:27. Available at: http://www.acronymgeek.com/OZNK. Accessed February 15, 2012, 10:27. |