| APA | ECF. (2012, February 14). In Acronym Geek. Retrieved 09:14, February 14, 2012, from http://www.acronymgeek.com/ECF |
| MLA | "ECF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ECF>. |
| MHRA | 'ECF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ECF> [accessed 14 February 2012] |
| Chicago | "ECF", http://www.acronymgeek.com/ECF (accessed February 14, 2012). |
| CBE/CSE | ECF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ECF. |
| Bluebook | ECF, http://www.acronymgeek.com/ECF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ECF, http://www.acronymgeek.com/ECF (optional description here) (as of Feb. 14, 2012, 09:14). |
| AMA | ECF. Acronym Geek. February 14, 2012, 09:14. Available at: http://www.acronymgeek.com/ECF. Accessed February 14, 2012, 09:14. |