| APA | IFEK. (2012, February 15). In Acronym Geek. Retrieved 12:22, February 15, 2012, from http://www.acronymgeek.com/IFEK |
| MLA | "IFEK." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/IFEK>. |
| MHRA | 'IFEK', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/IFEK> [accessed 15 February 2012] |
| Chicago | "IFEK", http://www.acronymgeek.com/IFEK (accessed February 15, 2012). |
| CBE/CSE | IFEK [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/IFEK. |
| Bluebook | IFEK, http://www.acronymgeek.com/IFEK (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IFEK, http://www.acronymgeek.com/IFEK (optional description here) (as of Feb. 15, 2012, 12:22). |
| AMA | IFEK. Acronym Geek. February 15, 2012, 12:22. Available at: http://www.acronymgeek.com/IFEK. Accessed February 15, 2012, 12:22. |