| APA | NNPL. (2012, February 16). In Acronym Geek. Retrieved 06:54, February 16, 2012, from http://www.acronymgeek.com/NNPL |
| MLA | "NNPL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/NNPL>. |
| MHRA | 'NNPL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/NNPL> [accessed 16 February 2012] |
| Chicago | "NNPL", http://www.acronymgeek.com/NNPL (accessed February 16, 2012). |
| CBE/CSE | NNPL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/NNPL. |
| Bluebook | NNPL, http://www.acronymgeek.com/NNPL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNPL, http://www.acronymgeek.com/NNPL (optional description here) (as of Feb. 16, 2012, 06:54). |
| AMA | NNPL. Acronym Geek. February 16, 2012, 06:54. Available at: http://www.acronymgeek.com/NNPL. Accessed February 16, 2012, 06:54. |