| APA | EKFS. (2012, February 15). In Acronym Geek. Retrieved 16:15, February 15, 2012, from http://www.acronymgeek.com/EKFS |
| MLA | "EKFS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/EKFS>. |
| MHRA | 'EKFS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/EKFS> [accessed 15 February 2012] |
| Chicago | "EKFS", http://www.acronymgeek.com/EKFS (accessed February 15, 2012). |
| CBE/CSE | EKFS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/EKFS. |
| Bluebook | EKFS, http://www.acronymgeek.com/EKFS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EKFS, http://www.acronymgeek.com/EKFS (optional description here) (as of Feb. 15, 2012, 16:15). |
| AMA | EKFS. Acronym Geek. February 15, 2012, 16:15. Available at: http://www.acronymgeek.com/EKFS. Accessed February 15, 2012, 16:15. |