| APA | VYSO. (2012, February 15). In Acronym Geek. Retrieved 20:40, February 15, 2012, from http://www.acronymgeek.com/VYSO |
| MLA | "VYSO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/VYSO>. |
| MHRA | 'VYSO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/VYSO> [accessed 15 February 2012] |
| Chicago | "VYSO", http://www.acronymgeek.com/VYSO (accessed February 15, 2012). |
| CBE/CSE | VYSO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/VYSO. |
| Bluebook | VYSO, http://www.acronymgeek.com/VYSO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VYSO, http://www.acronymgeek.com/VYSO (optional description here) (as of Feb. 15, 2012, 20:40). |
| AMA | VYSO. Acronym Geek. February 15, 2012, 20:40. Available at: http://www.acronymgeek.com/VYSO. Accessed February 15, 2012, 20:40. |