| APA | VDO. (2012, February 14). In Acronym Geek. Retrieved 07:54, February 14, 2012, from http://www.acronymgeek.com/VDO |
| MLA | "VDO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/VDO>. |
| MHRA | 'VDO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/VDO> [accessed 14 February 2012] |
| Chicago | "VDO", http://www.acronymgeek.com/VDO (accessed February 14, 2012). |
| CBE/CSE | VDO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/VDO. |
| Bluebook | VDO, http://www.acronymgeek.com/VDO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VDO, http://www.acronymgeek.com/VDO (optional description here) (as of Feb. 14, 2012, 07:54). |
| AMA | VDO. Acronym Geek. February 14, 2012, 07:54. Available at: http://www.acronymgeek.com/VDO. Accessed February 14, 2012, 07:54. |