| APA | VZD. (2012, February 11). In Acronym Geek. Retrieved 18:13, February 11, 2012, from http://www.acronymgeek.com/VZD |
| MLA | "VZD." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/VZD>. |
| MHRA | 'VZD', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/VZD> [accessed 11 February 2012] |
| Chicago | "VZD", http://www.acronymgeek.com/VZD (accessed February 11, 2012). |
| CBE/CSE | VZD [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/VZD. |
| Bluebook | VZD, http://www.acronymgeek.com/VZD (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VZD, http://www.acronymgeek.com/VZD (optional description here) (as of Feb. 11, 2012, 18:13). |
| AMA | VZD. Acronym Geek. February 11, 2012, 18:13. Available at: http://www.acronymgeek.com/VZD. Accessed February 11, 2012, 18:13. |