| APA | NPNR. (2012, February 11). In Acronym Geek. Retrieved 22:19, February 11, 2012, from http://www.acronymgeek.com/NPNR |
| MLA | "NPNR." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/NPNR>. |
| MHRA | 'NPNR', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/NPNR> [accessed 11 February 2012] |
| Chicago | "NPNR", http://www.acronymgeek.com/NPNR (accessed February 11, 2012). |
| CBE/CSE | NPNR [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/NPNR. |
| Bluebook | NPNR, http://www.acronymgeek.com/NPNR (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NPNR, http://www.acronymgeek.com/NPNR (optional description here) (as of Feb. 11, 2012, 22:19). |
| AMA | NPNR. Acronym Geek. February 11, 2012, 22:19. Available at: http://www.acronymgeek.com/NPNR. Accessed February 11, 2012, 22:19. |