| APA | EFV. (2012, February 12). In Acronym Geek. Retrieved 06:58, February 12, 2012, from http://www.acronymgeek.com/EFV |
| MLA | "EFV." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/EFV>. |
| MHRA | 'EFV', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/EFV> [accessed 12 February 2012] |
| Chicago | "EFV", http://www.acronymgeek.com/EFV (accessed February 12, 2012). |
| CBE/CSE | EFV [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/EFV. |
| Bluebook | EFV, http://www.acronymgeek.com/EFV (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EFV, http://www.acronymgeek.com/EFV (optional description here) (as of Feb. 12, 2012, 06:58). |
| AMA | EFV. Acronym Geek. February 12, 2012, 06:58. Available at: http://www.acronymgeek.com/EFV. Accessed February 12, 2012, 06:58. |