| APA | OSPU. (2012, February 15). In Acronym Geek. Retrieved 23:19, February 15, 2012, from http://www.acronymgeek.com/OSPU |
| MLA | "OSPU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OSPU>. |
| MHRA | 'OSPU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OSPU> [accessed 15 February 2012] |
| Chicago | "OSPU", http://www.acronymgeek.com/OSPU (accessed February 15, 2012). |
| CBE/CSE | OSPU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OSPU. |
| Bluebook | OSPU, http://www.acronymgeek.com/OSPU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSPU, http://www.acronymgeek.com/OSPU (optional description here) (as of Feb. 15, 2012, 23:19). |
| AMA | OSPU. Acronym Geek. February 15, 2012, 23:19. Available at: http://www.acronymgeek.com/OSPU. Accessed February 15, 2012, 23:19. |