| APA | WVO. (2012, February 14). In Acronym Geek. Retrieved 09:16, February 14, 2012, from http://www.acronymgeek.com/WVO |
| MLA | "WVO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/WVO>. |
| MHRA | 'WVO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/WVO> [accessed 14 February 2012] |
| Chicago | "WVO", http://www.acronymgeek.com/WVO (accessed February 14, 2012). |
| CBE/CSE | WVO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/WVO. |
| Bluebook | WVO, http://www.acronymgeek.com/WVO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, WVO, http://www.acronymgeek.com/WVO (optional description here) (as of Feb. 14, 2012, 09:16). |
| AMA | WVO. Acronym Geek. February 14, 2012, 09:16. Available at: http://www.acronymgeek.com/WVO. Accessed February 14, 2012, 09:16. |