| APA | VCAO. (2012, February 17). In Acronym Geek. Retrieved 01:38, February 17, 2012, from http://www.acronymgeek.com/VCAO |
| MLA | "VCAO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/VCAO>. |
| MHRA | 'VCAO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/VCAO> [accessed 17 February 2012] |
| Chicago | "VCAO", http://www.acronymgeek.com/VCAO (accessed February 17, 2012). |
| CBE/CSE | VCAO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/VCAO. |
| Bluebook | VCAO, http://www.acronymgeek.com/VCAO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VCAO, http://www.acronymgeek.com/VCAO (optional description here) (as of Feb. 17, 2012, 01:38). |
| AMA | VCAO. Acronym Geek. February 17, 2012, 01:38. Available at: http://www.acronymgeek.com/VCAO. Accessed February 17, 2012, 01:38. |