| APA | NPFI. (2012, February 16). In Acronym Geek. Retrieved 11:24, February 16, 2012, from http://www.acronymgeek.com/NPFI |
| MLA | "NPFI." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/NPFI>. |
| MHRA | 'NPFI', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/NPFI> [accessed 16 February 2012] |
| Chicago | "NPFI", http://www.acronymgeek.com/NPFI (accessed February 16, 2012). |
| CBE/CSE | NPFI [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/NPFI. |
| Bluebook | NPFI, http://www.acronymgeek.com/NPFI (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NPFI, http://www.acronymgeek.com/NPFI (optional description here) (as of Feb. 16, 2012, 11:24). |
| AMA | NPFI. Acronym Geek. February 16, 2012, 11:24. Available at: http://www.acronymgeek.com/NPFI. Accessed February 16, 2012, 11:24. |