| APA | ZVDD. (2012, February 15). In Acronym Geek. Retrieved 20:56, February 15, 2012, from http://www.acronymgeek.com/ZVDD |
| MLA | "ZVDD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ZVDD>. |
| MHRA | 'ZVDD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ZVDD> [accessed 15 February 2012] |
| Chicago | "ZVDD", http://www.acronymgeek.com/ZVDD (accessed February 15, 2012). |
| CBE/CSE | ZVDD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ZVDD. |
| Bluebook | ZVDD, http://www.acronymgeek.com/ZVDD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZVDD, http://www.acronymgeek.com/ZVDD (optional description here) (as of Feb. 15, 2012, 20:56). |
| AMA | ZVDD. Acronym Geek. February 15, 2012, 20:56. Available at: http://www.acronymgeek.com/ZVDD. Accessed February 15, 2012, 20:56. |