| APA | OSEK. (2012, February 17). In Acronym Geek. Retrieved 06:44, February 17, 2012, from http://www.acronymgeek.com/OSEK |
| MLA | "OSEK." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/OSEK>. |
| MHRA | 'OSEK', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/OSEK> [accessed 17 February 2012] |
| Chicago | "OSEK", http://www.acronymgeek.com/OSEK (accessed February 17, 2012). |
| CBE/CSE | OSEK [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/OSEK. |
| Bluebook | OSEK, http://www.acronymgeek.com/OSEK (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSEK, http://www.acronymgeek.com/OSEK (optional description here) (as of Feb. 17, 2012, 06:44). |
| AMA | OSEK. Acronym Geek. February 17, 2012, 06:44. Available at: http://www.acronymgeek.com/OSEK. Accessed February 17, 2012, 06:44. |