| APA | OVT. (2012, February 13). In Acronym Geek. Retrieved 23:30, February 13, 2012, from http://www.acronymgeek.com/OVT |
| MLA | "OVT." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/OVT>. |
| MHRA | 'OVT', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/OVT> [accessed 13 February 2012] |
| Chicago | "OVT", http://www.acronymgeek.com/OVT (accessed February 13, 2012). |
| CBE/CSE | OVT [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/OVT. |
| Bluebook | OVT, http://www.acronymgeek.com/OVT (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OVT, http://www.acronymgeek.com/OVT (optional description here) (as of Feb. 13, 2012, 23:30). |
| AMA | OVT. Acronym Geek. February 13, 2012, 23:30. Available at: http://www.acronymgeek.com/OVT. Accessed February 13, 2012, 23:30. |