| APA | VAIN. (2012, February 15). In Acronym Geek. Retrieved 06:45, February 15, 2012, from http://www.acronymgeek.com/VAIN |
| MLA | "VAIN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/VAIN>. |
| MHRA | 'VAIN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/VAIN> [accessed 15 February 2012] |
| Chicago | "VAIN", http://www.acronymgeek.com/VAIN (accessed February 15, 2012). |
| CBE/CSE | VAIN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/VAIN. |
| Bluebook | VAIN, http://www.acronymgeek.com/VAIN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VAIN, http://www.acronymgeek.com/VAIN (optional description here) (as of Feb. 15, 2012, 06:45). |
| AMA | VAIN. Acronym Geek. February 15, 2012, 06:45. Available at: http://www.acronymgeek.com/VAIN. Accessed February 15, 2012, 06:45. |