| APA | VEO. (2012, February 14). In Acronym Geek. Retrieved 19:34, February 14, 2012, from http://www.acronymgeek.com/VEO |
| MLA | "VEO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/VEO>. |
| MHRA | 'VEO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/VEO> [accessed 14 February 2012] |
| Chicago | "VEO", http://www.acronymgeek.com/VEO (accessed February 14, 2012). |
| CBE/CSE | VEO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/VEO. |
| Bluebook | VEO, http://www.acronymgeek.com/VEO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VEO, http://www.acronymgeek.com/VEO (optional description here) (as of Feb. 14, 2012, 19:34). |
| AMA | VEO. Acronym Geek. February 14, 2012, 19:34. Available at: http://www.acronymgeek.com/VEO. Accessed February 14, 2012, 19:34. |