| APA | NIEF. (2012, February 17). In Acronym Geek. Retrieved 05:42, February 17, 2012, from http://www.acronymgeek.com/NIEF |
| MLA | "NIEF." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/NIEF>. |
| MHRA | 'NIEF', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/NIEF> [accessed 17 February 2012] |
| Chicago | "NIEF", http://www.acronymgeek.com/NIEF (accessed February 17, 2012). |
| CBE/CSE | NIEF [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/NIEF. |
| Bluebook | NIEF, http://www.acronymgeek.com/NIEF (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NIEF, http://www.acronymgeek.com/NIEF (optional description here) (as of Feb. 17, 2012, 05:42). |
| AMA | NIEF. Acronym Geek. February 17, 2012, 05:42. Available at: http://www.acronymgeek.com/NIEF. Accessed February 17, 2012, 05:42. |