| APA | VIIO. (2012, February 16). In Acronym Geek. Retrieved 02:02, February 16, 2012, from http://www.acronymgeek.com/VIIO |
| MLA | "VIIO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/VIIO>. |
| MHRA | 'VIIO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/VIIO> [accessed 16 February 2012] |
| Chicago | "VIIO", http://www.acronymgeek.com/VIIO (accessed February 16, 2012). |
| CBE/CSE | VIIO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/VIIO. |
| Bluebook | VIIO, http://www.acronymgeek.com/VIIO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VIIO, http://www.acronymgeek.com/VIIO (optional description here) (as of Feb. 16, 2012, 02:02). |
| AMA | VIIO. Acronym Geek. February 16, 2012, 02:02. Available at: http://www.acronymgeek.com/VIIO. Accessed February 16, 2012, 02:02. |