| APA | VDN. (2012, February 13). In Acronym Geek. Retrieved 21:48, February 13, 2012, from http://www.acronymgeek.com/VDN |
| MLA | "VDN." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/VDN>. |
| MHRA | 'VDN', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/VDN> [accessed 13 February 2012] |
| Chicago | "VDN", http://www.acronymgeek.com/VDN (accessed February 13, 2012). |
| CBE/CSE | VDN [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/VDN. |
| Bluebook | VDN, http://www.acronymgeek.com/VDN (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VDN, http://www.acronymgeek.com/VDN (optional description here) (as of Feb. 13, 2012, 21:48). |
| AMA | VDN. Acronym Geek. February 13, 2012, 21:48. Available at: http://www.acronymgeek.com/VDN. Accessed February 13, 2012, 21:48. |