| APA | VION. (2012, February 16). In Acronym Geek. Retrieved 15:09, February 16, 2012, from http://www.acronymgeek.com/VION |
| MLA | "VION." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/VION>. |
| MHRA | 'VION', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/VION> [accessed 16 February 2012] |
| Chicago | "VION", http://www.acronymgeek.com/VION (accessed February 16, 2012). |
| CBE/CSE | VION [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/VION. |
| Bluebook | VION, http://www.acronymgeek.com/VION (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VION, http://www.acronymgeek.com/VION (optional description here) (as of Feb. 16, 2012, 15:09). |
| AMA | VION. Acronym Geek. February 16, 2012, 15:09. Available at: http://www.acronymgeek.com/VION. Accessed February 16, 2012, 15:09. |