| APA | VITL. (2012, February 14). In Acronym Geek. Retrieved 18:08, February 14, 2012, from http://www.acronymgeek.com/VITL |
| MLA | "VITL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/VITL>. |
| MHRA | 'VITL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/VITL> [accessed 14 February 2012] |
| Chicago | "VITL", http://www.acronymgeek.com/VITL (accessed February 14, 2012). |
| CBE/CSE | VITL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/VITL. |
| Bluebook | VITL, http://www.acronymgeek.com/VITL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VITL, http://www.acronymgeek.com/VITL (optional description here) (as of Feb. 14, 2012, 18:08). |
| AMA | VITL. Acronym Geek. February 14, 2012, 18:08. Available at: http://www.acronymgeek.com/VITL. Accessed February 14, 2012, 18:08. |