| APA | VTX. (2012, February 10). In Acronym Geek. Retrieved 16:55, February 10, 2012, from http://www.acronymgeek.com/VTX |
| MLA | "VTX." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/VTX>. |
| MHRA | 'VTX', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/VTX> [accessed 10 February 2012] |
| Chicago | "VTX", http://www.acronymgeek.com/VTX (accessed February 10, 2012). |
| CBE/CSE | VTX [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/VTX. |
| Bluebook | VTX, http://www.acronymgeek.com/VTX (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VTX, http://www.acronymgeek.com/VTX (optional description here) (as of Feb. 10, 2012, 16:55). |
| AMA | VTX. Acronym Geek. February 10, 2012, 16:55. Available at: http://www.acronymgeek.com/VTX. Accessed February 10, 2012, 16:55. |