| APA | NNEF. (2012, February 15). In Acronym Geek. Retrieved 03:10, February 15, 2012, from http://www.acronymgeek.com/NNEF |
| MLA | "NNEF." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NNEF>. |
| MHRA | 'NNEF', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NNEF> [accessed 15 February 2012] |
| Chicago | "NNEF", http://www.acronymgeek.com/NNEF (accessed February 15, 2012). |
| CBE/CSE | NNEF [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NNEF. |
| Bluebook | NNEF, http://www.acronymgeek.com/NNEF (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNEF, http://www.acronymgeek.com/NNEF (optional description here) (as of Feb. 15, 2012, 03:10). |
| AMA | NNEF. Acronym Geek. February 15, 2012, 03:10. Available at: http://www.acronymgeek.com/NNEF. Accessed February 15, 2012, 03:10. |