| APA | PSPN. (2012, February 16). In Acronym Geek. Retrieved 01:38, February 16, 2012, from http://www.acronymgeek.com/PSPN |
| MLA | "PSPN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PSPN>. |
| MHRA | 'PSPN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PSPN> [accessed 16 February 2012] |
| Chicago | "PSPN", http://www.acronymgeek.com/PSPN (accessed February 16, 2012). |
| CBE/CSE | PSPN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PSPN. |
| Bluebook | PSPN, http://www.acronymgeek.com/PSPN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PSPN, http://www.acronymgeek.com/PSPN (optional description here) (as of Feb. 16, 2012, 01:38). |
| AMA | PSPN. Acronym Geek. February 16, 2012, 01:38. Available at: http://www.acronymgeek.com/PSPN. Accessed February 16, 2012, 01:38. |