| APA | PPOR. (2012, February 17). In Acronym Geek. Retrieved 01:42, February 17, 2012, from http://www.acronymgeek.com/PPOR |
| MLA | "PPOR." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PPOR>. |
| MHRA | 'PPOR', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PPOR> [accessed 17 February 2012] |
| Chicago | "PPOR", http://www.acronymgeek.com/PPOR (accessed February 17, 2012). |
| CBE/CSE | PPOR [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PPOR. |
| Bluebook | PPOR, http://www.acronymgeek.com/PPOR (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PPOR, http://www.acronymgeek.com/PPOR (optional description here) (as of Feb. 17, 2012, 01:42). |
| AMA | PPOR. Acronym Geek. February 17, 2012, 01:42. Available at: http://www.acronymgeek.com/PPOR. Accessed February 17, 2012, 01:42. |