| APA | VYSI. (2012, February 10). In Acronym Geek. Retrieved 09:54, February 10, 2012, from http://www.acronymgeek.com/VYSI |
| MLA | "VYSI." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/VYSI>. |
| MHRA | 'VYSI', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/VYSI> [accessed 10 February 2012] |
| Chicago | "VYSI", http://www.acronymgeek.com/VYSI (accessed February 10, 2012). |
| CBE/CSE | VYSI [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/VYSI. |
| Bluebook | VYSI, http://www.acronymgeek.com/VYSI (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VYSI, http://www.acronymgeek.com/VYSI (optional description here) (as of Feb. 10, 2012, 09:54). |
| AMA | VYSI. Acronym Geek. February 10, 2012, 09:54. Available at: http://www.acronymgeek.com/VYSI. Accessed February 10, 2012, 09:54. |