| APA | PSPU. (2012, February 15). In Acronym Geek. Retrieved 19:00, February 15, 2012, from http://www.acronymgeek.com/PSPU |
| MLA | "PSPU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PSPU>. |
| MHRA | 'PSPU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PSPU> [accessed 15 February 2012] |
| Chicago | "PSPU", http://www.acronymgeek.com/PSPU (accessed February 15, 2012). |
| CBE/CSE | PSPU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PSPU. |
| Bluebook | PSPU, http://www.acronymgeek.com/PSPU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PSPU, http://www.acronymgeek.com/PSPU (optional description here) (as of Feb. 15, 2012, 19:00). |
| AMA | PSPU. Acronym Geek. February 15, 2012, 19:00. Available at: http://www.acronymgeek.com/PSPU. Accessed February 15, 2012, 19:00. |