| APA | EIFN. (2012, February 14). In Acronym Geek. Retrieved 01:25, February 14, 2012, from http://www.acronymgeek.com/EIFN |
| MLA | "EIFN." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/EIFN>. |
| MHRA | 'EIFN', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/EIFN> [accessed 14 February 2012] |
| Chicago | "EIFN", http://www.acronymgeek.com/EIFN (accessed February 14, 2012). |
| CBE/CSE | EIFN [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/EIFN. |
| Bluebook | EIFN, http://www.acronymgeek.com/EIFN (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EIFN, http://www.acronymgeek.com/EIFN (optional description here) (as of Feb. 14, 2012, 01:25). |
| AMA | EIFN. Acronym Geek. February 14, 2012, 01:25. Available at: http://www.acronymgeek.com/EIFN. Accessed February 14, 2012, 01:25. |