| APA | OZS. (2012, February 13). In Acronym Geek. Retrieved 23:20, February 13, 2012, from http://www.acronymgeek.com/OZS |
| MLA | "OZS." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/OZS>. |
| MHRA | 'OZS', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/OZS> [accessed 13 February 2012] |
| Chicago | "OZS", http://www.acronymgeek.com/OZS (accessed February 13, 2012). |
| CBE/CSE | OZS [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/OZS. |
| Bluebook | OZS, http://www.acronymgeek.com/OZS (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OZS, http://www.acronymgeek.com/OZS (optional description here) (as of Feb. 13, 2012, 23:20). |
| AMA | OZS. Acronym Geek. February 13, 2012, 23:20. Available at: http://www.acronymgeek.com/OZS. Accessed February 13, 2012, 23:20. |