| APA | OSEM. (2012, February 17). In Acronym Geek. Retrieved 07:03, February 17, 2012, from http://www.acronymgeek.com/OSEM |
| MLA | "OSEM." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/OSEM>. |
| MHRA | 'OSEM', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/OSEM> [accessed 17 February 2012] |
| Chicago | "OSEM", http://www.acronymgeek.com/OSEM (accessed February 17, 2012). |
| CBE/CSE | OSEM [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/OSEM. |
| Bluebook | OSEM, http://www.acronymgeek.com/OSEM (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSEM, http://www.acronymgeek.com/OSEM (optional description here) (as of Feb. 17, 2012, 07:03). |
| AMA | OSEM. Acronym Geek. February 17, 2012, 07:03. Available at: http://www.acronymgeek.com/OSEM. Accessed February 17, 2012, 07:03. |