| APA | VPBX. (2012, February 14). In Acronym Geek. Retrieved 00:05, February 14, 2012, from http://www.acronymgeek.com/VPBX |
| MLA | "VPBX." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/VPBX>. |
| MHRA | 'VPBX', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/VPBX> [accessed 14 February 2012] |
| Chicago | "VPBX", http://www.acronymgeek.com/VPBX (accessed February 14, 2012). |
| CBE/CSE | VPBX [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/VPBX. |
| Bluebook | VPBX, http://www.acronymgeek.com/VPBX (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VPBX, http://www.acronymgeek.com/VPBX (optional description here) (as of Feb. 14, 2012, 00:05). |
| AMA | VPBX. Acronym Geek. February 14, 2012, 00:05. Available at: http://www.acronymgeek.com/VPBX. Accessed February 14, 2012, 00:05. |