| APA | OSPM. (2012, February 16). In Acronym Geek. Retrieved 23:53, February 16, 2012, from http://www.acronymgeek.com/OSPM |
| MLA | "OSPM." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OSPM>. |
| MHRA | 'OSPM', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OSPM> [accessed 16 February 2012] |
| Chicago | "OSPM", http://www.acronymgeek.com/OSPM (accessed February 16, 2012). |
| CBE/CSE | OSPM [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OSPM. |
| Bluebook | OSPM, http://www.acronymgeek.com/OSPM (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSPM, http://www.acronymgeek.com/OSPM (optional description here) (as of Feb. 16, 2012, 23:53). |
| AMA | OSPM. Acronym Geek. February 16, 2012, 23:53. Available at: http://www.acronymgeek.com/OSPM. Accessed February 16, 2012, 23:53. |