| APA | OSPR. (2012, February 17). In Acronym Geek. Retrieved 02:38, February 17, 2012, from http://www.acronymgeek.com/OSPR |
| MLA | "OSPR." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/OSPR>. |
| MHRA | 'OSPR', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/OSPR> [accessed 17 February 2012] |
| Chicago | "OSPR", http://www.acronymgeek.com/OSPR (accessed February 17, 2012). |
| CBE/CSE | OSPR [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/OSPR. |
| Bluebook | OSPR, http://www.acronymgeek.com/OSPR (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSPR, http://www.acronymgeek.com/OSPR (optional description here) (as of Feb. 17, 2012, 02:38). |
| AMA | OSPR. Acronym Geek. February 17, 2012, 02:38. Available at: http://www.acronymgeek.com/OSPR. Accessed February 17, 2012, 02:38. |