| APA | NPPG. (2012, February 14). In Acronym Geek. Retrieved 22:39, February 14, 2012, from http://www.acronymgeek.com/NPPG |
| MLA | "NPPG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/NPPG>. |
| MHRA | 'NPPG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/NPPG> [accessed 14 February 2012] |
| Chicago | "NPPG", http://www.acronymgeek.com/NPPG (accessed February 14, 2012). |
| CBE/CSE | NPPG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/NPPG. |
| Bluebook | NPPG, http://www.acronymgeek.com/NPPG (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NPPG, http://www.acronymgeek.com/NPPG (optional description here) (as of Feb. 14, 2012, 22:39). |
| AMA | NPPG. Acronym Geek. February 14, 2012, 22:39. Available at: http://www.acronymgeek.com/NPPG. Accessed February 14, 2012, 22:39. |