| APA | VISF. (2012, February 17). In Acronym Geek. Retrieved 02:44, February 17, 2012, from http://www.acronymgeek.com/VISF |
| MLA | "VISF." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/VISF>. |
| MHRA | 'VISF', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/VISF> [accessed 17 February 2012] |
| Chicago | "VISF", http://www.acronymgeek.com/VISF (accessed February 17, 2012). |
| CBE/CSE | VISF [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/VISF. |
| Bluebook | VISF, http://www.acronymgeek.com/VISF (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VISF, http://www.acronymgeek.com/VISF (optional description here) (as of Feb. 17, 2012, 02:44). |
| AMA | VISF. Acronym Geek. February 17, 2012, 02:44. Available at: http://www.acronymgeek.com/VISF. Accessed February 17, 2012, 02:44. |