| APA | PNP. (2012, February 14). In Acronym Geek. Retrieved 06:32, February 14, 2012, from http://www.acronymgeek.com/PNP |
| MLA | "PNP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PNP>. |
| MHRA | 'PNP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PNP> [accessed 14 February 2012] |
| Chicago | "PNP", http://www.acronymgeek.com/PNP (accessed February 14, 2012). |
| CBE/CSE | PNP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PNP. |
| Bluebook | PNP, http://www.acronymgeek.com/PNP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PNP, http://www.acronymgeek.com/PNP (optional description here) (as of Feb. 14, 2012, 06:32). |
| AMA | PNP. Acronym Geek. February 14, 2012, 06:32. Available at: http://www.acronymgeek.com/PNP. Accessed February 14, 2012, 06:32. |