| APA | VYSN. (2012, February 16). In Acronym Geek. Retrieved 06:19, February 16, 2012, from http://www.acronymgeek.com/VYSN |
| MLA | "VYSN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/VYSN>. |
| MHRA | 'VYSN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/VYSN> [accessed 16 February 2012] |
| Chicago | "VYSN", http://www.acronymgeek.com/VYSN (accessed February 16, 2012). |
| CBE/CSE | VYSN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/VYSN. |
| Bluebook | VYSN, http://www.acronymgeek.com/VYSN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VYSN, http://www.acronymgeek.com/VYSN (optional description here) (as of Feb. 16, 2012, 06:19). |
| AMA | VYSN. Acronym Geek. February 16, 2012, 06:19. Available at: http://www.acronymgeek.com/VYSN. Accessed February 16, 2012, 06:19. |