| Style | Reference Text |
|---|
| APA | EV21. (2010, February 9). In Acronym Geek. Retrieved 20:07, February 9, 2010, from http://www.acronymgeek.com/EV21 |
| MLA | "EV21." Acronym Geek. 9 Feb 2010, 20:07. Acronym Geek. 9 Feb 2010 <http://www.acronymgeek.com/EV21>. |
| MHRA | 'EV21', Acronym Geek, 9 February 2010, 20:07, <http://www.acronymgeek.com/EV21> [accessed 9 February 2010] |
| Chicago | "EV21," http://www.acronymgeek.com/EV21 (accessed February 9, 2010). |
| CBE/CSE | EV21 [Internet]. Acronym Geek; 2010 Feb 9, 20:07 [cited 2010 Feb 9]. Available from: http://www.acronymgeek.com/EV21. |
| Bluebook | EV21, http://www.acronymgeek.com/EV21 (last visited February 9, 2010). |
| Bluebook: Harvard JOLT | See Acronym Geek, EV21, http://www.acronymgeek.com/EV21 (optional description here) (as of Feb. 9, 2010, 20:07). |
| AMA | EV21. Acronym Geek. February 9, 2010, 20:07. Available at: http://www.acronymgeek.com/EV21. Accessed February 9, 2010. |