| APA | NPNHTF. (2012, February 12). In Acronym Geek. Retrieved 08:55, February 12, 2012, from http://www.acronymgeek.com/NPNHTF |
| MLA | "NPNHTF." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/NPNHTF>. |
| MHRA | 'NPNHTF', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/NPNHTF> [accessed 12 February 2012] |
| Chicago | "NPNHTF", http://www.acronymgeek.com/NPNHTF (accessed February 12, 2012). |
| CBE/CSE | NPNHTF [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/NPNHTF. |
| Bluebook | NPNHTF, http://www.acronymgeek.com/NPNHTF (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NPNHTF, http://www.acronymgeek.com/NPNHTF (optional description here) (as of Feb. 12, 2012, 08:55). |
| AMA | NPNHTF. Acronym Geek. February 12, 2012, 08:55. Available at: http://www.acronymgeek.com/NPNHTF. Accessed February 12, 2012, 08:55. |