| APA | ECFX. (2012, February 16). In Acronym Geek. Retrieved 10:39, February 16, 2012, from http://www.acronymgeek.com/ECFX |
| MLA | "ECFX." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ECFX>. |
| MHRA | 'ECFX', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ECFX> [accessed 16 February 2012] |
| Chicago | "ECFX", http://www.acronymgeek.com/ECFX (accessed February 16, 2012). |
| CBE/CSE | ECFX [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ECFX. |
| Bluebook | ECFX, http://www.acronymgeek.com/ECFX (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ECFX, http://www.acronymgeek.com/ECFX (optional description here) (as of Feb. 16, 2012, 10:39). |
| AMA | ECFX. Acronym Geek. February 16, 2012, 10:39. Available at: http://www.acronymgeek.com/ECFX. Accessed February 16, 2012, 10:39. |