| APA | NNPN. (2012, February 15). In Acronym Geek. Retrieved 05:12, February 15, 2012, from http://www.acronymgeek.com/NNPN |
| MLA | "NNPN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NNPN>. |
| MHRA | 'NNPN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NNPN> [accessed 15 February 2012] |
| Chicago | "NNPN", http://www.acronymgeek.com/NNPN (accessed February 15, 2012). |
| CBE/CSE | NNPN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NNPN. |
| Bluebook | NNPN, http://www.acronymgeek.com/NNPN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNPN, http://www.acronymgeek.com/NNPN (optional description here) (as of Feb. 15, 2012, 05:12). |
| AMA | NNPN. Acronym Geek. February 15, 2012, 05:12. Available at: http://www.acronymgeek.com/NNPN. Accessed February 15, 2012, 05:12. |