| APA | VDOA. (2012, February 15). In Acronym Geek. Retrieved 20:24, February 15, 2012, from http://www.acronymgeek.com/VDOA |
| MLA | "VDOA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/VDOA>. |
| MHRA | 'VDOA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/VDOA> [accessed 15 February 2012] |
| Chicago | "VDOA", http://www.acronymgeek.com/VDOA (accessed February 15, 2012). |
| CBE/CSE | VDOA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/VDOA. |
| Bluebook | VDOA, http://www.acronymgeek.com/VDOA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VDOA, http://www.acronymgeek.com/VDOA (optional description here) (as of Feb. 15, 2012, 20:24). |
| AMA | VDOA. Acronym Geek. February 15, 2012, 20:24. Available at: http://www.acronymgeek.com/VDOA. Accessed February 15, 2012, 20:24. |