| APA | NNFE. (2012, February 15). In Acronym Geek. Retrieved 12:18, February 15, 2012, from http://www.acronymgeek.com/NNFE |
| MLA | "NNFE." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NNFE>. |
| MHRA | 'NNFE', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NNFE> [accessed 15 February 2012] |
| Chicago | "NNFE", http://www.acronymgeek.com/NNFE (accessed February 15, 2012). |
| CBE/CSE | NNFE [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NNFE. |
| Bluebook | NNFE, http://www.acronymgeek.com/NNFE (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNFE, http://www.acronymgeek.com/NNFE (optional description here) (as of Feb. 15, 2012, 12:18). |
| AMA | NNFE. Acronym Geek. February 15, 2012, 12:18. Available at: http://www.acronymgeek.com/NNFE. Accessed February 15, 2012, 12:18. |