| APA | VRN. (2012, February 10). In Acronym Geek. Retrieved 17:04, February 10, 2012, from http://www.acronymgeek.com/VRN |
| MLA | "VRN." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/VRN>. |
| MHRA | 'VRN', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/VRN> [accessed 10 February 2012] |
| Chicago | "VRN", http://www.acronymgeek.com/VRN (accessed February 10, 2012). |
| CBE/CSE | VRN [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/VRN. |
| Bluebook | VRN, http://www.acronymgeek.com/VRN (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VRN, http://www.acronymgeek.com/VRN (optional description here) (as of Feb. 10, 2012, 17:04). |
| AMA | VRN. Acronym Geek. February 10, 2012, 17:04. Available at: http://www.acronymgeek.com/VRN. Accessed February 10, 2012, 17:04. |