| APA | PORI. (2012, February 11). In Acronym Geek. Retrieved 20:18, February 11, 2012, from http://www.acronymgeek.com/PORI |
| MLA | "PORI." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/PORI>. |
| MHRA | 'PORI', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/PORI> [accessed 11 February 2012] |
| Chicago | "PORI", http://www.acronymgeek.com/PORI (accessed February 11, 2012). |
| CBE/CSE | PORI [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/PORI. |
| Bluebook | PORI, http://www.acronymgeek.com/PORI (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PORI, http://www.acronymgeek.com/PORI (optional description here) (as of Feb. 11, 2012, 20:18). |
| AMA | PORI. Acronym Geek. February 11, 2012, 20:18. Available at: http://www.acronymgeek.com/PORI. Accessed February 11, 2012, 20:18. |