| APA | NIFK. (2012, February 16). In Acronym Geek. Retrieved 21:55, February 16, 2012, from http://www.acronymgeek.com/NIFK |
| MLA | "NIFK." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/NIFK>. |
| MHRA | 'NIFK', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/NIFK> [accessed 16 February 2012] |
| Chicago | "NIFK", http://www.acronymgeek.com/NIFK (accessed February 16, 2012). |
| CBE/CSE | NIFK [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/NIFK. |
| Bluebook | NIFK, http://www.acronymgeek.com/NIFK (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NIFK, http://www.acronymgeek.com/NIFK (optional description here) (as of Feb. 16, 2012, 21:55). |
| AMA | NIFK. Acronym Geek. February 16, 2012, 21:55. Available at: http://www.acronymgeek.com/NIFK. Accessed February 16, 2012, 21:55. |